Find the area and circumference of a circle with diameter 42m.
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circumference = 131.9

area = 1385

Step-by-step explanation:

See explanation

Step-by-step explanation:

Circumference of a circle: 2πr

π = 22/7

r = d/2

r = 42/2

r = 21

2 × 21 × 22/7

42 × 22/7 = 924 ÷ 7 = 132

Circumference = 132m

Area of the circle: πr²

π = 22/7

r = 21

22/7 × (21²)

22/7 × 441 = 9702 ÷ 7 = 1386

Area = 1386 m²

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