From a circular sheet of paper with radius 20 cm, four circles of radius 5 cm each are cut out. What is the radio of the uncut to the cut portion?
(a)
1:3
(b)
3:1
(c)
4:1
(d)
4:3
From a circular sheet of paper with radius 20 cm, four circles of radius 5 cm each are cut out. What is the radio of the uncut to the cut portion?
(a)
1:3
(b)
3:1
(c)
4:1
(d)
4:3
Question ID - 50497 | SaraNextGen Top Answer
From a circular sheet of paper with radius 20 cm, four circles of radius 5 cm each are cut out. What is the radio of the uncut to the cut portion?
(a)
1:3
(b)
3:1
(c)
4:1
(d)
4:3
|
From a circular sheet of paper with radius 20 cm, four circles of radius 5 cm each are cut out. What is the radio of the uncut to the cut portion? |
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|
(a) |
1:3 |
(b) |
3:1 |
(c) |
4:1 |
(d) |
4:3 |
1 Answer
127 votes
Answer Key / Explanation : (b) -
Area of the cut portion = 
cm2.
Area of the uncut portion = 
Req. ratio = 
127 votes
Answer Link
127