Question: The area of a triangle can be determined using Heron's formula, which requires the side lengths of a triangle. Heron's formula is
In the formula A is the area; a, b, and c are the side lengths; and s is half the perimeter or a+b+c/2. Determine the area of each triangle with the following side lengths. Express each area to the nearest tenth of a square centimetre.
a) 15 cm, 12 cm, 10 cmb) 9.3 cm, 11.4 cm, 7.5 cm
The area of the triangle is 59.8 square cm.
b) 9.3 cm, 11.4 cm, 7.5 cm
The area of the triangle is 34.7 square cm.
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