Question

A hoop is resting vertically at staircase where AB =12 cm and BC= 8 cm .find radius of hoop?

Answer 1

We have to find CA.
So we can solve this by Pythagoras Theorem..
Let CA be hypotenuse.
AB be base.
BC be perpendicular......
Hope you can do this.
And
I hope that my hint will help you....