12. The length of a rectangle is 8 m more than its breadth. If its perimeter is 128 m, find its length and breadth.
Answers
Answered by
10
Let breadth be B
Length be L
Given L = b + 8
Perimeter = 2(L + B) = 128
1 + b = 64
b + 8 + b = 64
2b = 56
b = 28
1 = 8 + 28 = 36
Hope it helps!
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Answered by
7
Answer:
Let the breadth be x .
then the length will be x+8
we know that the perimeter of the rectangle is
2 (L+b)
2( x+8+x)=128
2(2x+8)=128
4x+16=128
4x=128-16
4x=112
x=112/4
x= 28
we got breadth as 28 m and length will be :-
x+8
= 36 m
hence , the length of the rectangle is 36 m and breadth is 28 m .
Step-by-step explanation:
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