Question

Find the area of the triangle

Answer 1

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Answer 2

Answer:

C) 17.1 square units

Step-by-step explanation:

Use Heron's formula to calculate the area of the triangle:

$Area = \sqrt{s(s-a)(s-b)(s-c)}$  where  $s=\frac{a+b+c}{2}$ which represents the semi-perimeter of the triangle:

$s=\frac{9.9+6.1+6}{2}=11$

Therefore:

$Area = \sqrt{11(11-9.9)(11-6.1)(11-6)}$

$Area = \sqrt{11(1.1)(4.9)(5)}$

$Area = \sqrt{296.45}$

$Area = 17.2$

Therefore, the closest answer choice is C) 17.1 square units