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bekas [8.4K]
3 years ago
6

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

Mathematics
2 answers:
Roman55 [17]3 years ago
6 0

Answer: 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

Hope this helps!

Mrac [35]3 years ago
4 0

Answer:

circumference = 131.9

area = 1385

Step-by-step explanation:

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3 years ago
One of the legs of a right triangle measures 8 cm and its hypotenuse measures 14 cm.
Ugo [173]

Answer:

about 11.5 cm.

Step-by-step explanation:

I know the measurement of the other leg is about 11.5 cm. I know because I used the Pythagorean theorem.

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