Question

QR is a radius of r and PQ is tangent to r. Find the value of x. Please help me!! I am in dire need! What is X?! Thank you for any assistance. :)

Answer 1

54

Explanation:

The Pythagorean theorem applies.

(x +36)^2 = 72^2 + x^2

x^2 +72x +1296 = x^2 +5184

72x = 3888 . . . . . . subtract x^2+1296

x = 54 . . . . . . . . . . . divide by 72