SOLUTION: A rectangle with sides of length a and a-9 has the same perimeter as a triangle with sides of length a+9, a+7, and a-2. Find the perimeter of the rectangle

Question 845621: A rectangle with sides of length a and a-9 has the same perimeter as a triangle with sides of length a+9, a+7, and a-2. Find the perimeter of the rectangle
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,



 2a + 2(a-9) = a+9  + a+7  + a-2

 2a + 2a - 18 = 3a + 14

        a = 32

Perimeter of the tr1angle is =  41 + 39 + 30 = 110

CHECKING our answer***rectangle has the same perimeter as a triangle 

64 + 46  = 110

Wish You the Best in your Studies.

 

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