SOLUTION: In right triangle ABC, M angle B =90, AB=5, and AC =12. Find BC. Round to the nearest tenth, if necessary.

Algebra ->  Triangles -> SOLUTION: In right triangle ABC, M angle B =90, AB=5, and AC =12. Find BC. Round to the nearest tenth, if necessary.      Log On


   

Question 145349: In right triangle ABC, M angle B =90, AB=5, and AC =12. Find BC. Round to the nearest tenth, if necessary.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Since it's a right triangle, has a 90 deg angle, the easiest way is to use Pythagoras, AB%5E2+%2B+BC%5E2+=+AC%5E2%29
So, BC%5E2+=+144+-+25
BC%5E2+=+119
BC+=+sqrt%28119%29
BC = 10.9