Question 1017069
The perimeter of the triangle is 12*3=36. And the rectangle has the same perimeter.
and the problem tells us that the length of the rectangle is:
L = 2W-3
Now, the perimeter of the rectangle is:
2L+2W = 36 Substitute for L:
2(2W-3)+2W = 36
4W-6+2W = 36
6W-6 = 36 Add 6, both sides:
6W = 42 Divide both sides by 6
W = 7 This is the width. And the length:
L= 2W-3 = 2(7)-3 = 14-3 = 11 is the length
J