Question

Points L and Kare points of tangency. Find the value of x.

Answer 1

x = 5

Explanation:

Based on the tangent theorem, tangents drawn from an external point of a circle are equal.

This means:

4x - 1 = 2x + 9

Collect like terms

4x - 2x = 1 + 9

2x = 10

Divide both sides by 2

2x/2 = 10/2

x = 5