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anonymous

  • 4 years ago

Find the value of x.

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  1. anonymous
    • 4 years ago
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  2. saifoo.khan
    • 4 years ago
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    Do u know the total interior angle of a pentagon?>

  3. anonymous
    • 4 years ago
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    Not really:/

  4. saifoo.khan
    • 4 years ago
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    Ok, so it's necessary that u know the total interior angle of the pentagon. So the first step is to find it. Use the formula \[{180(n-2)}\]Where n is the number of sides.

  5. saifoo.khan
    • 4 years ago
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    So, u have 5 sided figure. so what will be the value of "n" be?

  6. anonymous
    • 4 years ago
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    Erm, I have no idea and I don't wanna guess.

  7. precal
    • 4 years ago
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    Seems like they also, don't want to do any math?????

  8. anonymous
    • 4 years ago
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    More like don't understand it.

  9. precal
    • 4 years ago
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    How many sides is your figure? that is your n value, sub it into the formula he gave you and that will tell you how many degrees your figure is made up of

  10. anonymous
    • 4 years ago
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    Ohhh thanks!:)

  11. anonymous
    • 4 years ago
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    So n is 5, correct?

  12. precal
    • 4 years ago
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    yes

  13. precal
    • 4 years ago
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    add up all of your interior angles and set it equal to that number and solve for x

  14. anonymous
    • 4 years ago
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    So substituted 180(n-2) is 180(5-2) which is 180(3) then 540?

  15. precal
    • 4 years ago
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    yes set it equal to 540

  16. anonymous
    • 4 years ago
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    So what does the formula look like now and what's my next step?

  17. precal
    • 4 years ago
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    all up all the given interior angles here is a hint the little box represents a right angle and that is 90 degrees 90 + 112 + ..........finish=540 solve for x

  18. anonymous
    • 4 years ago
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    Is it 90x or 112x?

  19. precal
    • 4 years ago
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    really????

  20. precal
    • 4 years ago
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    Name all of the angles (Hint: Look at the picture you posted) Start with 90 degrees

  21. anonymous
    • 4 years ago
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    Is it 67.5 or 68?

  22. precal
    • 4 years ago
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    what equation did you use? I am still waiting for you to tell me all of the angles listed on your picture.

  23. anonymous
    • 4 years ago
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    Angles are 148,112, 2x+10 and 2x right? I'm so bad at this.

  24. precal
    • 4 years ago
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    but you forgot 90 degrees that is what the little box means

  25. precal
    • 4 years ago
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    90 + 112 + 148+ 2x+10+2x=540 solve for x

  26. anonymous
    • 4 years ago
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    Ah yes, 90! Forgot that!

  27. precal
    • 4 years ago
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    ok solve for x

  28. anonymous
    • 4 years ago
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    x=13.5 ish

  29. anonymous
    • 4 years ago
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    Can you help me with one mor question?!

  30. precal
    • 4 years ago
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    there is no ish in mathematics 90 + 112 + 148 + 2x+10+ 2x=540 360 + 4x=540 -360 -360 4x=180 divide both sides by 4 x=45

  31. precal
    • 4 years ago
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    well post it, if I can help I will

  32. anonymous
    • 4 years ago
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    Give the name that best describes the parallelogram and find the measures of the numbered angles.

  33. anonymous
    • 4 years ago
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  34. anonymous
    • 4 years ago
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    Ahh, I added the formula wrong.

  35. precal
    • 4 years ago
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    ok angles 1, 3 are the same value angles 2, 4 are the same value by the alternate interior angles triangles equal up to 180 degrees 180-116=64 degrees

  36. precal
    • 4 years ago
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    2 and 3 add up to 64 degrees

  37. precal
    • 4 years ago
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    Triangle is an isoceles and those angles are equal ie 2 and 3 are equal so what do you think the answer is

  38. anonymous
    • 4 years ago
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    64

  39. precal
    • 4 years ago
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    angle 2 and 3 are the same value they both add up to 64

  40. anonymous
    • 4 years ago
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    then 128

  41. anonymous
    • 4 years ago
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    oh wait lol, 32

  42. precal
    • 4 years ago
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    I was beginning to worry yes 32

  43. anonymous
    • 4 years ago
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    Yay! Thank you so much!:)

  44. precal
    • 4 years ago
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    Anytime :)

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