Two sides of a triangle are 26 cm and 30 cm. If perimeter of the triangle is 84 cm, then
find the area of the triangle.
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add two sides of triangle. so, 26+30 is 56cm
perimeter is 84cm
third side of triangle = perimeter - 56 cm
84-56 = 28cm
semi perimeter of triangle is perimeter/2
so, 84/2
= 42cm
By using Heron's Formula,
Area of triangle is √s(s-a)(s-b)(s-c)
=√42(42-26)(42-30)(42-28)
=√42*16*12*14
=√112896
= 336cm²
Therefore area of triangle is 336cm²
please mark this as brainliest answer
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