Question

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Answer 1

Answer:

a)

radius= diameter/2 = 10/2 = 5mm

circumference = 2πr = 2 × 3.14 × 5 = 31.4 mm

area = πr^2 = 3.14 × (5)^2 = 3.14 × 25

= 78.5 mm^2

b)

circumference= 2πr = 2×3.14×6 = 37.68 inches

area= πr^2 = 3.14 × (6)^2= 3.14 × 36

= 113.04 inches^2

Step-by-step explanation:

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