Question

What is the length of the unknown side​

Answer 1

Answer: ↓↓↓

Explanation:

1. a = ? b = 16 c = 18

a² + b² = c²

a² + (16)² = (18)²

a² + 256 = 324

- 256 -256

a² = 68

√a² = √68

a ≈ 8.25

2. a = 4 b = 8 c = ?

a² + b² = c²

(4)² + (8)² = c²

16 + 64 = c²

80 = c²

√c² = √80

c ≈ 8.94