the length of a rectangle is twice its breadth write an expression for its perimeter in terms of its breadth use expression to calculate the perimeter of a rectangle whose breadth is 5 units.
plus answer with explanation
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Answered by
6
Answer:
Perimeter (P) = 6×breadth
If breadth = 5 , then P= 30units
Step-by-step explanation:
Dimensions of a rectangle:
Let breadth (b) = x
Length (l) = 2x ,
Perimeter (P) = 2(l+b)
= 2(2x+x)
=2×3x
= 6x
If breadth (b)= x = 5 units,
then
Perimeter (P) = 6x
= 6×5
= 30 units
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Answered by
0
Answer:
i dont know
Step-by-step explanation:
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