Suppose given △abc with a line segment
de
connecting sides
ab
and
bc
so that
de
∥
ac
. the lengths of the sides of △dbe are one third of the lengths of the sides of △abc. what is the area of trapezoid adec if the area of △abc is 27 cm2?

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

step-by-step explanation:

left be aligning the decimal points is required to not required see the number of digits to the right

is there more to this question?