22. a. The ratio between the perimeter and the length of a rectangle is 5:2. Find the ratio between the length and the breadth of the rectangle. b. The ratio between the breadth and the perimeter of a rectangle is 2:10. Find the ratio between the length and the breadth of the rectangle.
Answers
Answer:
a.
4:1
b.
3:2
Step-by-step explanation:
q no.a
given that
the ratio between the perimeter and the length of a rectangle is 5:2
p=5x and l=2x
we know that
p=2(l+b)
5x=2(2x+b)
2b=x
b=X/2
so, the ratio between the length and breadth will be
2x/X/2
=4:1
q no.b
b/p=2/10
b=2x & p=10x
p=2(l+b)
10x=2(l+2x)
2l=6x
l=3x
so the ratio between the length and breadth will be
l/b=3x/2x
=3/2
3:2
Answer:
Answer:
a.
4:1
b.
3:2
Step-by-step explanation:
q no.a
given that
the ratio between the perimeter and the length of a rectangle is 5:2
p=5x and l=2x
we know that
p=2(l+b)
5x=2(2x+b)
2b=x
b=X/2
so, the ratio between the length and breadth will be
2x/X/2
=4:1
q no.b
b/p=2/10
b=2x & p=10x
p=2(l+b)
10x=2(l+2x)
2l=6x
l=3x
so the ratio between the length and breadth will be
l/b=3x/2x
=3/2
3:2
Step-by-step explanation: