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Trigonometry 13 Online
OpenStudy (anonymous):

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.

OpenStudy (anonymous):

@ranga

OpenStudy (anonymous):

how can i solve this?

OpenStudy (ranga):

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OpenStudy (ranga):

Area of a parallelogram = base * height = AB * DE = 76 * DE Find DE from the triangle DAE.

OpenStudy (anonymous):

how?

OpenStudy (anonymous):

@ranga

OpenStudy (ranga):

In triangle DAE sin(63) = ?

OpenStudy (ranga):

What is the definition of sine in a triangle?

OpenStudy (anonymous):

i dunno

OpenStudy (ranga):

sine = opposite / hypotenuse So for sin(63) in the triangle AED what is opposite and what is hypotenuse?

OpenStudy (anonymous):

@ranga step by step please

OpenStudy (ranga):

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.

OpenStudy (anonymous):

the hypotenuse is 36 and the opposite is 76

OpenStudy (anonymous):

correct?

OpenStudy (anonymous):

@ranga

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