An isosceles triangle has perimeter 30 cm and each of the equal sides is 12 cm. Find the area of the triangle.
Heron's Formula
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Question

An isosceles triangle has perimeter 30 cm and each of the equal sides is 12 cm. Find the area of the triangle.

KnowledgeBoat · Accepted Answer

Length of equal sides (a and b) = 12 cm Let third side of triangle (c) = x cm Given, Perimeter of triangle = 30 ∴ 12 + 12 + x = 30 ⇒ 24 + x = 30 ⇒ x = 30 - 24 ⇒ x = 6 cm. ∴ c = 6 cm. By formula, Semi perimeter (s) = = 15 cm. By Heron's formula, Area of triangle (A) = sq.units Substituting values we get : Hence, area of triangle = cm².

Mathematics

An isosceles triangle has perimeter 30 cm and each of the equal sides is 12 cm. Find the area of the triangle.

Heron's Formula

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An isosceles triangle has perimeter 30 cm and each of the equal sides is 12 cm. Find the area of the triangle.

Heron's Formula

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