Question

the area of the rectangle is 270 km². what is the area of the shaded triangle? a 90 km² b 135 km²

Explanation:

Step1: Recall triangle area in rectangle

A triangle sharing the base and height of a rectangle has an area equal to half the rectangle's area.

Step2: Calculate shaded area

$\text{Shaded Area} = \frac{1}{2} \times 270$

Answer:

B. $135\ \text{km}^2$