Question

28 cm In a circular garden of diameter 100 m, a circular playground has been constructed at the centre of the garden, having radius of 41 m. Find the area of the remaining land of the garden. tallic sheet of 10 cm radius there is a small hole at the centre of the sheet of 3 cm radius.
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Answer 1

Answer:

Step-by-step explanation:

Radius of circular garden = Diameter/2 = 100/2 = 50m

Radius of circular playground = 41m
Area of remaining land of the garden = Area of garden - Area of playground
(Here radius of garden = R and radius of playground = r)
⇒ πR²-πr² = π(R²-r²)
⇒22/7(50²- 41²)
⇒22/7(2500-1681)
⇒22/7×819
⇒18018/7
⇒2574m²

Answer 2

Answer:

2574m2

Step-by-step explanation:

Beacause diameter is given.so find out the radius first.

So radius-diameter/2=100/2=50m.

Then find out the area.

Area =22/7×(r1+r2)×(r1-r2)

R1=50m

r2=41?.