find the length of AB. the figure is a circle with external point A and points B & C on the circle. Ab & Ac are both tangent. Ac=7in.

Question

word problem for geometry circles homework. 

Answer 1

Hi Brittnee,

Tangents of a circle from the same exterior point have equal distances from the external point to the points of tangency. Therefore, AB is 7 inches also.

If you draw this accurately, you can actually measure the distances to verify it. Try it!