Question

Please help! image is below,


If b = 45, and c = 4 , then a = ___ units.

Answer 1

a = 26.5 units.

Explanation:

Answer 2

14

Explanation:

By intersecting tangent and secant theorem:

`{a}^(2) =c(b + c) \\ \\ {a}^(2) = 4(4 + 45) \\ \\ = 4 * 49 \\ \\ a = √(4 * 49) \\ \\ a = 2 * 7 \\ \\ a = 14`