Question

What is the area, in square units, of trapezoid ABCD shown below?

Answer 1

Given:

Trapezoid with bases 10 and 20, and height of the trapezoid is 6.

To find:

The area of the trapezoid.

Solution:

We know that the area of a trapezoid is:

$A=\dfrac{1}{2}h(b_1+b_2)$

Where, h is the height of the trapezoid and $b_1,b_2$ are bases of the trapezoid.

Putting $h=6, b_1=10,b_2=20$ in the above formula, we get

$A=\dfrac{1}{2}(6)(10+20)$

$A=3(30)$

$A=90$

The area of the trapezoid is 90 sq units. Therefore, the correct option is A.