Question

Find the area of a triangle whose side are 12cm, 15cm, and 17 cm in length​

Answer 1

Answer:

44

Explanation:

area of triangle = side + side + side

Answer 2

Answer:

$the \: side \: of \: triangle \: are \: 12cm \: 15cm \: 17cm \:$

$by \: herions \: formula$

$s = \frac{a + b + c}{2}$

$s = \frac{12 + 15 + 17}{2}$

$s = \frac{44}{2}$

$s = 22cm$

$area = \sqrt{s(s - a)(s - b)(s - c)}$

$area = \sqrt{22(22 - 12)(22 - 15)(22 - 17)}$

$area = \sqrt{22 \times 10 \times 7 \times 5}$

$area = 10 \sqrt{77} {cm}^{2}$