Question

find the circumference and area of each of the following circles given diameter is equal to 16.1 cm​

Answer 1

Answer:

circumference=2πr

= 2×22/7×16.1/2

= 22/7×16.1

= 22/10× 23

= 506cm

Answer 2

Answer :

Diameter = 16.1 cm

Radius = 16.1 / 2 = 8.05 cm

Circumference :

2πr = 2 × 3.14 × 8.05 = 50.554 = 50.5 cm

Area :

πr² = 3.14 × 8.05 × 8.05 = 203.47 cm²

Hence

Area = 203.47 cm²

Circumference : 50.5 cm²

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