The ratio of length and breadth of a rectangle is 2:3. If its length is 4 cm, what will be its breadth? Also, find the perimeter of the rectangle?
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Answered by
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It's breadth is 6 cm and its perimeter is 20 cm
because length is 2x i.e 4
so if we understand breadth as 3x so 1st we have to find x i.e. 2x=4
x=4÷2=2
so 2 is x and then breadth is 3x i.e. 3 × 2=6
and perimeter is 2×(l+b)
i.e. 2×(6+4)
2×10=20 mark me brainliest if it is correct and if it is incorrect than rate me 1 star.
Answered by
2
Answer:
Breadth = 6cm
Perimeter = 20cm
Step-by-step explanation:
let the unknown number be x
2 : 3 :: 4 : x
2x = 3*4(Cross multiplication)
2x = 12
x = 12/2
x = 6
breadth = 6cm
Perimeter = 2(l+b)
= 2(4+6)
= 2(10)
=20cm
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