Book Maths Puzzle Geometry

What are the keysteps to prove the following geometry problem?

FIND THE RADIUS OF THE CIRCLE INSCRIBED IN THE TRIANGLE ABC.

GIVEN: AC=BC=12 AB=8

Read Solution (Total 0)

Book Other Question

1. Solve the equation: 2x^3 + 6x= 8x^2

2. Explain why it is incorrect to solve the equation (y-2) (y+2) =4 by setting y-2=2 and y+2=2 and solving the resulting equations.

Tha two consecutive integers are added the square of their sum is 361, what are the integers?