You guys I don’t even know how to start this help please!!! Use the right triangle below to solve.

Which trig function should be used to find side AB if you know the measure of angle A and side CB?

A sine
B cosine
C tangent
D none of these

You know the opposite side of the angle and want to find the hypotenuse

Sin(angle) = opposite/ hypotenuse

You would use the sine function

step-by-step explanation: noo

geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

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