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Heron's Formula 9
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The sides of a triangle are 5, 12 and 13 units respectively. A rectangle is constructed which is equal in area to the triangle and has a width of 10 units. Then the perimeter of the rectangle is
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A
26
💡 Explanation:
The triangle is a right triangle (5-12-13). Area = 0.5 * 5 * 12 = 30. A rectangle with area 30 and width 10 must have length 3 (30/10). The perimeter of the rectangle is 2 * (length + width) = 2 * (10 + 3) = 26.