Question

6. Find the value of x. *
3
3
45°
Х

Answer 1

Explanation:

Isosceles triangle with legs of length 3 and vertex angle 45°.

X is the side opposite the 45° angle.

sin(45°/2) = x/2 ÷ 3

sin(22.5°) = x/6

x = 6sin(22.5°) ≅ 2.3 units