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katrin [286]
3 years ago
12

Find the circumference and the area of a circle with diameter 2 cm.

Mathematics
1 answer:
ivolga24 [154]3 years ago
3 0

Answer:

c = 6.28cm

area \:  = 3.14 {cm}^{2}

Step-by-step explanation:

circumferece \\  = 2\pi \: r \\  = 2 \times 3.14 \times 1 \\  = 6.28cm

area = \pi {r}^{2}  \\  = \pi \times 1 \times 1  \\  = 3.14 {cm}^{2}

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A gold alloy contains 15 milligrams of gold for every 4 milligrams of copper. A jeweler uses 48 milligrams of copper to make the
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3 years ago
A 12 cm by 20 cm painting hangs in a museum. The museum curator wants to hang other paintings in the gallery that are proportion
nata0808 [166]

Answer:

A. 1.5 cm by 2.5 cm

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C. 9 cm by 15 cm

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Option E is not correct

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