Find the area of a rectangle if its perimeter is 30cm and its length is 8cm.
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Given : A rectangle
Length = 8 cm
Perimeter = 30 cm
To Find : Area of the rectangle
Solution:
Length = 8 cm
Breadth = b cm
Perimeter of a rectangle = 2 ( Length + Breadth)
perimeter of the rectangle = 30 cm
=> 2( 8 + b) = 30
=> 8 + b = 15
=> b = 7
Area of a rectangle = Length * breadth
Area of the rectangle = 8 * 7 = 56 cm²
Area of the rectangle is 56 cm²
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