Question

4. Find the perimeter of the rectangle given below and then, find its value for x = 1, y = 2.

Answer 1

the length of rectangle = 5x-y

the breadth of rectangle = y

so the length of rectangle = 5-2 = 3

and the breadth of rectangle = 2

so the perimeter of the rectangle = 2(l+b)=2(3+2)=

2(10)=10 cm

so the perimeter of rectangle 10 cm

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Answer 2

Answer:

perimeter =2(l+b)

l=2(x+y)=2(1+2)=2(3)=6

b=(5x-y)=(5×1-2)=3

p=2(l+b)

p=2(6+3)

p=18

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