Question

Find the value for the side marked below.

Answer 1

Answer:

Solution given:

angle : 80°

hypotenuse:y=?

opposite=21

we have

Sin 80=$\frac{opposite} {hypotenuse}=\frac{21}{y}$

doing crisscrossed multiplication

we get

y=$\frac{21}{Sin 80°}$

y=21.32