Find the length of the third side of the right triangle

Answer:
9
Step-by-step explanation:
2 2
b + 8 = 17
b + 16 = 34
34 - 16 = 18
18 ÷ 2 = 9
Answer:
15
Step-by-step explanation:
Using Pythagorean theorem
17^2 = b^2 + 8^2
17 x 17 = b^2 + 8 x 8
289 = b^2 + 64
Subtract 64 from both sides
289 - 64 = b^2 + 64 - 64
225 = b^2
b^2 = 225
b = square root of 225
b = 15