The unequal side of an isosceles A is 6 cm and its perimeter is 24 cm. Find its area.

Solution

b + b + 6 = 24
$rightwards double arrow$ b = 9 cm
$therefore space space space space space space Area space equals space 9 over 4 square root of 4 straight b squared minus straight a squared end root space space space space space space space space space equals space 6 over 4 square root of 4 left parenthesis 9 right parenthesis squared minus left parenthesis 6 right parenthesis squared end root space space space space space space space space space equals 3 over 2 square root of 288 space space space space space space space space space equals 3 over 2.12 square root of 2 space space space space space space space space space equals space 18 square root of 2 space cm$

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Statistics

The unequal side of an isosceles A is 6 cm and its perimeter is 24 cm. Find its area.

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