Question

what is the area of the shaded region? 15 mi 7 mi 9 mi 18 mi write your answer as a whole number or a decimal rounded to the nearest hundredth. square miles

Explanation:

Step1: Area of larger triangle

$\frac{15 \times 18}{2} = 135$

Step2: Area of smaller triangle

$\frac{7 \times 9}{2} = 31.5$

Step3: Shaded area (difference)

$135 - 31.5 = 103.5$

Answer:

103.5