Find the value for the side marked below. Round your answer to the nearest tenth.

Somebody please help me solve this, I’ve been stuck on it for hours

Solution given:

angle : 80°

hypotenuse:y=?

opposite=21

we have

Sin 80=

doing crisscrossed multiplication

we get

y=

y=21.32

c. prove the lengths are the same.

step-by-step explanation:

you need to prove the segments are congruent. congruent segments have the same length. find the lengths of the segments using the distance formula, and compare them.

answer: c. prove the lengths are the same.