Question

Find the approximate value of x (Round to the nearest tenths place)

X
4
12
Pls help

Answer 1

6.9

Explanation:

If a secant segment and tangent segment are drawn to a circle from the same external point, the product of the length of the secant segment and its external part equals the square of the length of the tangent segment

x² = 4 * 12

x² = 48

Take the square root of both sides

x = 6.9282032303

Rounded

x = 6.9

Answer 2

8

Explanation:

By intersecting tangent secant theorem:

`{x}^(2) = 4(4 + 12) \\ \\ {x}^(2) = 4 * 16 \\ \\ {x}^(2) = 64 \\ \\ x = √(64) \\ \\ x = 8`