Question

What is the area, in square kilometers, of a trapezoid with bases 5 km and 7 km and height 3 km?

Answer 1

`18" km"^2`

Explanation:

The area of a quadrilateral is equal to the average of the base lengths times the height.

This can be written as such: `A_"trapezoid"=(h(b_1+b_2))/2`

We can plug what we know into the equation:

`A=(3(5+7))/2=(3(12))/2=36/2=18" km"^2`