Question

the length of a rectangle is twice its breadth if the perimeter is 30 cm find the area of the rectangle​

Answer 1

Answer:

Let the length of the breadth be x and then length will be 2x

given, perimeter of rectangle is 30cm

i.e. 2(length + breadth) = 30

=> 2(2x + x ) = 30

=> 2(3x) = 30

=>3x = 30/2

=> x = 15/3 = 5

hence breadth of the rectangle is 5cm

length of the rectangle is 2(5) = 10cm

Area of the rectangle is length x breadth

= 5 *10 = 50

hence area of the rectangle is 50cm²

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Answer 2

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