1.

Find the area of circle with the given diameter 8 cm 20 cm​

Answer»

Answer:

(i) 50.24 cm²

(ii) 314 cm²

Step-by-step explanation:

(i) Diameter = 8 cm

Radius r = 4

Area = πr² = 3.14 × 4² = 3.14 × 16 = 50.24 cm²

(ii) Diameter = 20 cm

Radius r = 10

Area = πr²​ = 3.14 × 10² = 3.14 × 100 = 314 cm²



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