Question

Help pls thank you very much!

Answer 1

please see answers below

Explanation:

In a right-angled triangle, a ² + b ² = c ²

Sine rule: a/SIN A = b/SIN B = c/SIN C

x/sin 90 = 8/sin 45

x = (8 sin 90) / sin 45

= 8√2

y² = x² - 8²

= ( 8√2)² - 64

= 128 - 64

= 64.

y = √64 = 8