Q. A rectangle has a perimeter of 48 cm. If the length is three times as long as its breadth, then find its length and breadth.
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Q. A rectangle has a perimeter of 48 cm. If the length is three times as long as its breadth, then find its length and breadth.
I'm fine sis
hru??
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Answer:
Let the breadth of a rectangle be (x) cm. Then,
it's length = (3x) cm
Perimeter of a rectangle = 2(l + b)
=> 48 = 2(3x + x)
=> 48/2 = 4x
=> 24 = 4x
=> x = 24/4
=> x = 6
Hence , the breadth of a rectangle = 6 cm
and it's length = (3 × 6) cm
= 18 cm
Step-by-step explanation:
Step-by-step explanation:
perimeter = 48 cm (given)
let breadth = x
therefore, length = 3x
perimeter of rectangle = 2( length + breadth )
=> 48 cm = 2 ( 3x + x )
=> 48/2 cm = 4x
=> 24 cm = 4x
=> 24/4 cm = x
·°· x = 6 cm
now ,
breadth = x
= 6cm
length = 3x
=3× 6 cm
= 18cm