Use Heron's Formula to Find the Area of a Triangle
-$a = 20$ yards, $b = 13$ yards, $c = 17$ yards
A) 110 square yards
B) 113 square yards
C) 116 square yards
D) 119 square yards

Question

Quizplus · Accepted Answer

Heron's Formula: $Area = \sqrt{s(s-a)(s-b)(s-c)}$where $s$ is the semiperimeter: $s = \frac{a+b+c}{2}$$s = \frac{20+13+17}{2} = 25$$Area = \sqrt{25(25-20)(25-13)(25-17)} = \sqrt{25 \times 5 \times 12 \times 8} = 110$ square yards

Use Heron's Formula to Find the Area of a Triangle a=20a = 20a=20

Use Heron's Formula to Find the Area of a Triangle $a = 20$