# In the given figure PQSR represents a flower be. If OP = 21 m and OR = 14 m, find the area of the flower bed.

Given:

OP = 21 m = r1

OR = 14 m = r2

Let the quadrants made by outer and inner circles be Q1 and Q2, with radius r1 and r2 respectively.

Then, Area of flower bed = Area of Q1 – Area of Q2

Area of Q1 = πr12

= × × 21 × 21

= m2

Similarly, Area of Q2 = πr22

= × × 14 × 14

= m2

Thus, Area of flower bed = -

= = 192.5 m2

Hence, the area of the flower bed is 192.5 m2.

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