Question

If the perimeter of triangle ABC is 45, which is the perimeter of triangle CRB?

56
54
45
44

Answer 1

We need more information than that.

Answer 2

here

Answer 3

Figure out the length of \(\overline{CB}\) based on the given sides and given perimeter of \(\triangle ABC\). Then you'll be able to just add all of the sides of \(\triangle CRB\) to find its perimeter.

Answer 4

how do i figure BC theres no hints to help me figure it out

Answer 5

You know the perimeter of \(\triangle ABC\) and you know the length of two of the sides. It's just a matter of subtracting those two side lengths from the perimeter to find the extra side length.

Answer 6

its 20

ok so thats BC now what?

Answer 7

You know all of the sides of \(\triangle CRB\) now, so you can find the perimeter.

Answer 8

ahh so its 54

Answer 9

thanks

Answer 10

Correct.