Question

Which of the following is the area of the special trapezoid if AB = 10, CD = 10, and the height is 8.

Answer 1

Answer:

Step-by-step explanation:

Alright, lets get started.

The given two sides are AB = 10

CD = 10

It means a is 10 and b is 10.

The height h is given as 8.

The formula of area of trapezoid = $\frac{1}{2}(a+b)*h$

Plugging the values of a,b and h in the formula:

area = $\frac{1}{2}(10+10)*8$

area = $\frac{1}{2}*20*8$

area = $10*8=80$

Hence the area is 80 units  :  Answer B

Hope it will help :)

Answer 2

Area of a trapezoid is A=height over 2 B1 +B2, so 10+10=20, then 20(8)=160, 160/2=80. Answer is b.