Question

The perimeter of a rectangle is 75/4 m . If the length of the rectangle is twice the breadth , find the area of the rectangle .
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Answer 1

Answer:

312.5 sq m

Step-by-step explanation:

perimeter=75/4(length+breadth/2)

=18.75m

breadth=x

length=2x

perimeter=

(2x+x)/2=18.75m

breadth=

2x+x=18.75*2

3x=37.5

x=37.5/3

x=12.5m

breadth=x=12.5m

length=2x=12.5*2=25m

area= length*breadth

=25*12.5

=312.5 sq m

Answer 2

perimeter of rectangle = 2(l+b)

now, length = 2breadth = 2b , breadth = b

then ., 75/4 = 2 ( 2b + b )

75/4 = 6b , breadth = 75/24 ..., length = 2 × 75/24= 150/24 = 50/8 ...

now , area = l× b = 75/24× 50/8 = 25/8× 25/4 = 625/ 32m sq ..