The sides of a triangle are 5, 12 and 13 units. 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
Explanation:
Since 5-12-13 forms a Pythagorean triplet, the triangle under consideration is a right-angled triangle with height 12 and base 5. So area of the triangle = 12(12)(5) = 30 sq. units.
If area of the rectangle with width 10 units is 30 sq. units, its length = 3 units. Hence, its perimeter = 2(10 + 3) = 26 units.
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