perimeter of the rectangle

Question

The perimeter of the rectangle is 104 units. Find the length of side CD without variables. CD= 3Y+2    DA= 4Y +1

Answer 1

The perimeter of the rectangle is 104 units. Find the length of side CD without variables. CD= 3Y+2    DA= 4Y +1

 

The rectangle has two pairs of sides that are equal, so we will write the equation of the perimeter.

 

2 * (3Y+2) + 2*(4Y+1) = 104

6Y + 4 + 8Y+2 = 104

14Y=104-6

Y= 98/14

 

Now plug our value for Y into the two side equations and find out the length of each side.