Question

1. What is the value of y? What is the perimeter of ? Show your work.

Answer 1

y = 3

Perimeter: 17 ft

Explanation:

3y - 2 = y + 4

2y = 6

y = 3

Perimeter: 4 + 6 + (3 + 4)

10 + 7

17

Answer 2

Both triangles are the same dimensions set the two equations equal and solve for y:

3y -2 = y +4

Add 2 to both sides:

3y = y + 6

Subtract 1y from both sides:

2y = 6

Divide both sides by 2:

Y = 3

Perimeter = ((3(3)-2 =9-2= 7):

7 + 4 + 6 = 17 feet