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प्रश्न
An equilateral triangle and d square has equal perimeter. If side of the triangle is 9.6 cm ; what is the length of the side of the square?
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उत्तर
Perimeter of equilateral triangle = Perimeter of square Side of triangle = 9.6 cm
∴ Perimeter of triangle = 3 x side
= 3 x 9.6 cm = 28.8 cm
⇒ Perimeter of the square = 28.8 cm
4 x the side of square = 28.8 cm
⇒ The side of the square = `28.8/4` cm
= 7. 2 cm
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