Question

The perimeter of a rectangle is 60 cm. If its width is 10 cm. What is the measurement of the longer side?

Answer 1

Answer:

let length be x

p=2(l+b)

60=2(x+10)

60=2x+20

2x=60-40

2x =20

x=10cm

Answer 2

Answer:

Perimeter of a rectangle = 2(L + B)

Since the Length is twice the breadth that mean the Breath is 2xB = 2B

Perimeter of a rectangle = 2(2B + B)

Perimeter of a rectangle = 2(3B)

Perimeter of a rectangle = 6B

60= 6B

Breadth = 10

Length = 2x10= 20

Area = Length x Breadth

Area = 10 x 20 = 200cm

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