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QuestionsWolf Group Title

I have about 3 questions that need answer pretty quick. Please Help!

  • one year ago
  • one year ago

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  1. QuestionsWolf Group Title
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    1. Calculate the surface area of this triangular prism. a. 255 m^2 b. 360 m^2 c. 468 m^2 d. 495 m^2

    • one year ago
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  2. sauravshakya Group Title
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    Did u mean Total Surface Area?

    • one year ago
  3. QuestionsWolf Group Title
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    Yes.

    • one year ago
  4. sauravshakya Group Title
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    First Try to find the base of the right angled triangle

    • one year ago
  5. QuestionsWolf Group Title
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    Is the formula SA =2B +(s1+s2+s3)h

    • one year ago
  6. sauravshakya Group Title
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    Use pythagorean theorem

    • one year ago
  7. QuestionsWolf Group Title
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    How would I do that?

    • one year ago
  8. sauravshakya Group Title
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    |dw:1362320690928:dw| then, 9^2 +x^2 =15^2

    • one year ago
  9. SeanAcedia Group Title
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    caCan't you just use the fact that the 12m on the bottom is parallel to the leg on the top?

    • one year ago
  10. sauravshakya Group Title
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    Oh yes! u can use it

    • one year ago
  11. QuestionsWolf Group Title
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    I still don't get it.

    • one year ago
  12. sauravshakya Group Title
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    Now, u can directly use the formula mentioned above

    • one year ago
  13. QuestionsWolf Group Title
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    But I don't know what the base is.

    • one year ago
  14. sauravshakya Group Title
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    It is 12

    • one year ago
  15. sauravshakya Group Title
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    So, Find the Area of the Base

    • one year ago
  16. QuestionsWolf Group Title
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    Okay. how do we do that?

    • one year ago
  17. sauravshakya Group Title
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    Area of traingle =1/2 base * height

    • one year ago
  18. QuestionsWolf Group Title
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    so 6 * 10.

    • one year ago
  19. sauravshakya Group Title
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    No

    • one year ago
  20. QuestionsWolf Group Title
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    Then what is the height?

    • one year ago
  21. sauravshakya Group Title
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    Base of the triangle is 12 and height is 9

    • one year ago
  22. QuestionsWolf Group Title
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    so 6 * 9 = 54

    • one year ago
  23. QuestionsWolf Group Title
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    54 is our base now?

    • one year ago
  24. sauravshakya Group Title
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    Yes, thats the Area of the right angled triangle base

    • one year ago
  25. QuestionsWolf Group Title
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    So SA =2(54) +(s1+s2+s3)h

    • one year ago
  26. sauravshakya Group Title
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    Now, Total Surface Area = 2* Area of base +(s1+s2+s3) * height of the prism

    • one year ago
  27. QuestionsWolf Group Title
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    The height of the prism is 10.

    • one year ago
  28. sauravshakya Group Title
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    yes

    • one year ago
  29. QuestionsWolf Group Title
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    SA =2(54) +(s1+s2+s3)10

    • one year ago
  30. QuestionsWolf Group Title
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    How do we find the sides?

    • one year ago
  31. sauravshakya Group Title
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    The sides are 9 , 12 and 15

    • one year ago
  32. sauravshakya Group Title
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    Observe the figure

    • one year ago
  33. QuestionsWolf Group Title
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    So, SA =2(54) +(9+12+15)10

    • one year ago
  34. sauravshakya Group Title
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    very correct

    • one year ago
  35. QuestionsWolf Group Title
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    The answer is 468

    • one year ago
  36. sauravshakya Group Title
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    \[\checkmark\]

    • one year ago
  37. QuestionsWolf Group Title
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    Thank you. Do you think you can help me with two more?

    • one year ago
  38. sauravshakya Group Title
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    welcome

    • one year ago
  39. SeanAcedia Group Title
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    Basically to find the surface area you would need to find the area of each individual 2 dimensional shape and add them together.

    • one year ago
  40. QuestionsWolf Group Title
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    2. What is the approximate length of the lateral surface for the cylinder shown here in net form? a. 31.4 in b. 62.8 in c. 78.5 in d. 376.8 in

    • one year ago
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  41. QuestionsWolf Group Title
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    31.4 is the circumference of the circle.

    • one year ago
  42. QuestionsWolf Group Title
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    Hello?

    • one year ago
  43. QuestionsWolf Group Title
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    Would I multiply that by 12?

    • one year ago
  44. SeanAcedia Group Title
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    The circumference is 31.4 which is the same lateral surface of the rectangle so you already got your answer.

    • one year ago
  45. SeanAcedia Group Title
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    the same as the *

    • one year ago
  46. QuestionsWolf Group Title
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    Okay, thanks. Can you help me with one more?

    • one year ago
  47. SeanAcedia Group Title
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    sure

    • one year ago
  48. QuestionsWolf Group Title
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    Canned fruits, vegetables, and soups have labels on the curved surface of the metal container. What is the surface area of the label on this can? That is, what is the can's lateral area? a. 88 cm^2 b. 401.92 cm^2 c. 552.64 cm^2 d. 954.64 cm^2

    • one year ago
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  49. QuestionsWolf Group Title
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    Oh is it 552.64^2?

    • one year ago
  50. SeanAcedia Group Title
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    You would find the circumference of the circle and you would multiply it by 11. the

    • one year ago
  51. QuestionsWolf Group Title
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    The circumfrence is, 50.24

    • one year ago
  52. QuestionsWolf Group Title
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    Multiplied by 11 is, 552.64

    • one year ago
  53. SeanAcedia Group Title
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    ya you go the right answer

    • one year ago
  54. QuestionsWolf Group Title
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    Thank-you. You made it so much clearer. :)

    • one year ago
  55. SeanAcedia Group Title
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    no problem

    • one year ago
  56. QuestionsWolf Group Title
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    I think that is all, should I close this?

    • one year ago
  57. SeanAcedia Group Title
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    well if i you have no more questions needed answered i suppose :P gl with your maths

    • one year ago
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