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Rishav kumar

· started a discussion

· 1 Months ago

a ANSWER RIGHT (Question:181707.0)

bWORNG

Question:
The diameter of a circle is equal to the perimeter of a square whose area is 3136 sq. cms. What is the circumference of the circle?
Options:
A) 352 cm.
B) 704 cm.
C) 394.24 cm.
D) Cannot be determined.
Solution:

Area of the square = 3136 cm2

\(\therefore\) Side of the square = \(\sqrt{3136}\) 


\(\therefore\) perimeter of square= 4 × 56 = 224 cm=Diameter of circle

\(\therefore \)Circumference of circle 

= \(\pi\) × diameter 

=  \(\cfrac{22}{7}\times 224\) = 704 cm


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