Question

a park is in the form of a rectangle under 120 m by 90 M at the centre of the park there is a circular lawn as shown in the figure the area of the park excluding the lawn is 2950 m square find the radius of the circular lawn.

Answer 1

hi friend,
Area of rec. park=(120×90)m²=10800m²
Area of rec. park excluding lawn=2950m²
Area of circular lawn=(10800 - 2950)m²
=7850m²
Let the radius be = r
7850/3.14 = 3.14r²/3.14
→2500 = r²
→√2500 = √r²
→50 = r
→r = 50
Radius = 50m

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Answer 2

Answer:- Radius of the circular lawn is 50 m.