Question

calculate the length of the unknown sides​

Answer 1

it's seems ∠P = 90°

Pythagoras theorem

PR² + PQ² = QR²

15² + PQ² = 17²

225 + PQ² = 289

PQ² = 289 - 225

PQ² = 64

PQ = √64

PQ = 8 cm

Answer 2

Answer:

x = 8 cm

Step-by-step explanation:

hypotenuse = 17cm

so x^2 + 15^2 = 17^2

x^2 = 289-225

x^2 = 64

x = 8 cm