Question

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

Answer 1

b. 54

Explanation:

45 is original perimeter for ABC. You subtract 16 and 9 from 45 to get the missing side B which is 20. To answer the the perimeter for triangle CRB you add 20 to the other sides which is 15 and 19. The total is 54.