210k views
6 votes
What is the length of the Radius if AB is tangent to OB

What is the length of the Radius if AB is tangent to OB-example-1

1 Answer

9 votes

Answer:

r = 5 units

Explanation:

One way is to use the Pythag Theroem

12 ^2 + r^2 = (8+r)^2

144 + r^2 = 64 + 16r + r^2

80 = 16 r r = 5

User DanielCuadra
by
7.9k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories