Question

What is the length of s?​

Answer 1

Answer:

s = 10$\sqrt{2}$

Step-by-step explanation:

using the sine ratio in the right triangle and the exact value

sin45° = $\frac{\sqrt{2} }{2}$ , then

sin45° = $\frac{opposite}{hypotenuse}$ = $\frac{s}{20}$ = $\frac{\sqrt{2} }{2}$ ( cross- multiply )

2s = 20$\sqrt{2}$ ( divide both sides by 2 )

s = 10$\sqrt{2}$