Question

Please help ASAP. What is the length os side BC of the triangle

Answer 1

nswer:

B C = 24

Explanation:

The triangle is isosceles, because (from the diagram)  ∠ A B C = ∠ A C B  - note how the angle there is marked on both of these. If these angles are equal, this means that the sides  

A C = A B

let  A C = A B

x +8=2x-1

8 = x − 1

x = 9

We want to find the length of  

B C , which is  ( 3 x − 3 ) . We know that  x = 9

B C =3 x − 3

B C = 3 ( 9 ) −3

B C = 27 − 3

B C = 24