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forsale [732]
3 years ago
10

What is the area of a circle with diameter 8cm? Round your answer to the nearest tenth. use pi= 3.14

Mathematics
2 answers:
hodyreva [135]3 years ago
7 0

Answer:

50.2 square cm

Step-by-step explanation:

Diameter = 8 cm

Radius = 8/2 = 4 cm

area \: of \: circle = \pi {r}^{2}  \\  = 3.14 \times  {4}^{2}  \\  = 3.14 \times 16 \\  = 50.24 \:  {cm}^{2}  \\  = 50.2 \:  {cm}^{2}

balandron [24]3 years ago
7 0

Answer:

50.62=51

Step-by-step explanation:

A=pi*r^2

=3.14*(4^2)

=50.62=51

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