a length of reactrangle is twice its breath . if its perimeter is 60cm , find the length and breath of rectangle .
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→ Let the breadth be x then length be 2x
→ Perimeter of rectangle = 60cm
→ 2(l + b) = 60
→ 2(2x + x) = 60
→ 3x = 60/2
→ 3x = 30
→ x = 30/3 = 10
- Length = 2x = 20 cm
- Breadth = x = 10cm
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