Q8. The area of rectangle is 810sq cm and one side is 30 cm. find the perimeter of rectangle?
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Answer:
27is second side
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Step-by-step explanation:
Given, Area of the rectangle = 810sq cm
and one side let it be Length(l)=30 cm
now apply Formula for area of the rectangle
Area of rectangle = Length * breadth(b)
810sq cm = 30 cm * b
b = (810 sq cm)/ 30 cm
b= 27 cm
now we know both length and breadth so just put the value of both in formula of perimeter,
Perimeter of rectangle = 2(l+b)
=2(30+27)
=2*57
=114 cm
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