Atriangular parking lot has two sides that are the same length and the third side is 5 m longer. if the perimeter is 71 m, find the lengths of the sides.

22m, 22m, 27m

Step-by-step explanation:

The three sides can be noted as: x, x, and x + 5

x + x + x + 5= 71

3x + 5 = 71

3x = 66

x = 22

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2