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Basant

· started a discussion

· 1 Months ago

wrong question (Question:716953.0)

if u place a circle of diameter more than breath of rectangale it could not be solved on the base of area of rectangle

Question:

A park is in the form of rectangle 150 m x 120 m. In the centre of the park, there is a circular lawn. The area of the park excluding the lawn is 5500 m2. Find the radius of the circular lawn.

Options:
A) 70 m 
B) 65 m
C) 60 m 
D) 63.06 m
Solution:

Ans: (d) 


Area of park excluding lawn = 

Area of rectangle - Area of lawn

5500 = 120 X 150 - \(\cfrac{22}{7}r^2\)  \(\Rightarrow\) r = \(\sqrt{3977.27}\)   = 63.06

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