Question

The perimeter of square is 40cm. The shorter side of a rectangle is same as an edge of the square. Longer side of rectangle is two times its shorter side. The area of the rectangle is:​

Answer 1

Answer:

200 cm²

Step-by-step explanation:

perimeter of the square = 40cm

one side = 40/4 = 10cm

shorter side of the rectangle would also be equal to 10cm

longer side = 2×10 = 20cm

area of rectangle = length × breadth

                             = 10×20 = 200cm²

Answer 2

Answer:

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Step-by-step explanation:

so let the each side of square ie its each edge be x cm

also let the shorter side of rectangle be l cm and that of its bigger side be b cm

so we know that perimeter of square=4×side

thus according to the first condition

4x=40

ie x=10 cm

according to second condition

x=l

ie l=10 cm

according to third condition

b=2l

ie b=2×10=20 cm

so thus then

area of rectangle=l×b

=20×10

=200 cm

thus The area of the rectangle is 200 cm