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Nitella [24]
2 years ago
11

Area of a circle, diameter = 16.8cm

Mathematics
2 answers:
MakcuM [25]2 years ago
8 0

Answer:

221.56 cm^2 or 70.56pi

Step-by-step explanation:

Area of a circle  = pi*radius^2

Radius = diameter/2, radius = 8.4

3.14(8.4)^2 = 221.56 cm squared, or 70.56pi

Vesnalui [34]2 years ago
5 0

Answer:

Step-by-step explanation:

Area of circle=Pi times radius^2

Diameter is half of radius=8.4

Pi*8.4^2=221.670777637

Hope this helps!

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julia-pushkina [17]
An hour has 60 minutes.

-> 5/6 of 60 minutes
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So, 40 minutes.


Hope this helps. If you have any questions, please put them in the comments below.
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