A wire is used to make different shapes. Whenever a closed shape is made, 5% from both sides is used to join and tape the ends. The wire is first in the form of square and then folded into circle.
Question:3 ) What is ratio of the areas of circle and square QBID: 10181
A)  1.27
B)  1.42
C)  1.142
D)  0.787
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Question:3 ) What is ratio of the areas of circle and square QBID: 10181
A)  1.27
B)  1.42
C)  1.142
D)  0.787
NEXT
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Ratio of areas of circle and square = 1.27
Step-by-step explanation:
Number of joints in square = Number of joints in circle = 1
So 5% of the length of the wire is lost in both figures.
Essentially, the length of the wire in both cases is the same.
So Perimeter of square = perimeter of circle.
4a = 2πr
a = πr/2------(1)
Area of square = a*a = πr/2 * πr/2
Area of circle = πr*r
Ratio of areas of circle and square = πr*r / (πr/2 * πr/2)
= 4/ π
= 4*7 / 22
= 28/22
= 1.27
Option A is the answer.