Question

In the diagram, point B is a point of tangency.Find the radius r of this diragram . THANKY YOU

Answer 1

r= 18

Explanation:

use the Pythagorean theorem to solve this

`r^(2) +24^(2) =(r+12)^(2)`

`r^(2)+576=r^(2) +24r+144`

-144 -144

`r^(2)+432=r^(2) +24r`

-
`r^(2)` -
`r^(2)`

`432=24r`

/24 /24

18=r