Question

The circle with the tangent line is shown. Find the length of the radius?

Answer 1

X = 5.4

Step by step explanation:

In this case, we can use the Pythagorean theorem.

`c^2=a^2+b^2`
`9^2=7.2^2+x^2`
`x\text{ = }\sqrt[]{9^2-7.2^2}\text{ }`
`x\text{ = 5.4}`