What is the area of a trapezoid if the base is 5, 17, 5 and height is 4

44 units squared.

Step-by-step explanation:

The formula for area of a trapezoid is:

a = missing area

b1 = short base (5)

b2 = long base (17)

h = height (4)

(5 + 17) ÷ 2 = 11

11 × 4 = 44

area = 44

5 + 17) ÷ 2 = 11  So you add 5+17 which is 22, you then divide it by 2 which is 11. 11x4= 44  so 44 units squared. Hope this helped!

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

ddd

step-by-step explanation: