the length of a rectangle exceeds its breadth by 7cm if the perimeter of the rectangle is 90 cm find the area of the rectangle
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Answered by
1
Let the Breadth be a
Length = a +7
Perimeter = 2(a +a +7)
=> 45 = 2a + 7
=> 2a = 38
=> a = 19
Breadth = 19 cm
Length = 26 cm
area= l×b
= 19×26
=494 cm²
Answered by
4
Step-by-step explanation:
let the breadth be x
length=×+7
perimeter=2(l+b)
90=2(x+x+7)
=90/2=2x+7
=45-7=2x
=38=2x
=38/2=x
=19=breadth
19+7=26=length
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