1. Length of a rectangle is three times its breadth. Perimeter of the rectangle is 40 cm. Find its length and
width
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1. Length of a rectangle is three times its breadth. Perimeter of the rectangle is 40 cm. Find its length and
width
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Answer:
Step-by-step explanation:Let l and b be the length and breadth of rectangle
Given that, l=3b
We know that,
Perimeter of the rectangle =2×(l+b)
⇒40 cm=2×(3b+b)=2×4 b=8 b
⇒b=
8
40
cm=5 cm
⇒l=3b=3×5 cm=15 cm.
Hence, the length and width of the rectangle are 15 cm and 5 cm% respectively.