Question

In the above figure find the shaded angle ​

Answer 1

Answer:

44m^2

Step-by-step explanation:

Let us assume R=4.5 m & r=2.5 m.

Area of the region between two concentric circles 

with radius of outer circle R, and inner circle r =π(R2−r2)

Hence, the area of the region formed by two

concentric circles whose radii are 4.5  m and 2.5 m =π(4.52−2.52)=722(20.25−6.25)=44m2

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