Verified answer

area = 1/2 * base * height = 17.5

A = 1/2 * bh = 1/2 * 5*7 = 35/2 = 17.5 in^2 >>>>> d

a= (1/2)bh

a= (1/2)(5)(7)

a= (1/2)(35)

a= 17.5

Final Answer: d.17.5 square inches

Let the base be x ft peak = x - 7 toes discipline = half X (x) ( x-7) = 1/2 ( x^2 - 7x) = 30 x^2 -7x = 60 x^2 -7x -60 = 0 ( x-12) ( x +5) = zero x = 12 reply Base = 12 ft top = 5 toes

a=1/2b * h

=(1/2)(5)*(7)

=17.5

d.17.5 square inches