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jacalneaila

  • 2 years ago

the sides of the parallelogram are 36 cm and 76 cm,. if they intersect at angle of 63 degrees , find the area of the parallelogram.

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  1. jacalneaila
    • 2 years ago
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    @ranga

  2. jacalneaila
    • 2 years ago
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    how can i solve this?

  3. ranga
    • 2 years ago
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    |dw:1385781798570:dw|

  4. ranga
    • 2 years ago
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    Area of a parallelogram = base * height = AB * DE = 76 * DE Find DE from the triangle DAE.

  5. jacalneaila
    • 2 years ago
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    how?

  6. jacalneaila
    • 2 years ago
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    @ranga

  7. ranga
    • 2 years ago
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    In triangle DAE sin(63) = ?

  8. ranga
    • 2 years ago
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    What is the definition of sine in a triangle?

  9. jacalneaila
    • 2 years ago
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    i dunno

  10. ranga
    • 2 years ago
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    sine = opposite / hypotenuse So for sin(63) in the triangle AED what is opposite and what is hypotenuse?

  11. jacalneaila
    • 2 years ago
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    @ranga step by step please

  12. ranga
    • 2 years ago
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    I can't make it any simpler. You should know the definition of sine by now. If I keep solving problems then there won't be any learning.

  13. jacalneaila
    • 2 years ago
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    the hypotenuse is 36 and the opposite is 76

  14. jacalneaila
    • 2 years ago
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    correct?

  15. jacalneaila
    • 2 years ago
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    @ranga

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