the perimeter of a rectangular sheet is 170 cm if its breadth is 15 CM less than its length find the length also find its area
Answers
Answered by
20
Answer:700cm²
Step-by-step explanation:
Let the length be x
Given breadth = x-15
perimeter = 2(l+b)
170=2(x+x+15)
2(2x+15)=170
4x+30=170
4x=140
x=35.
Length=35cm
Breadth=(35-15)cm
=20cm
Area=length*breadth
=35*20
=700cm²
Answered by
7
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