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leva [86]
3 years ago
8

A circular mirror has a radius of 11.5 inches. How much framing do you need to frame the mirror.

Mathematics
1 answer:
ira [324]3 years ago
7 0

You need 72.26 inches to frame the mirror

Step-by-step explanation:

Lets revise the rules of a circle

  • Its area  is A = πr², where r is the length of its radius
  • Its circumference is C = 2πr

A circular mirror has a radius of 11.5 inches

We need to frame it

∵ The frame of the mirror is surrounded its circumference

∵ The length of the frame = the circumference of the mirror

∵ C = 2πr

∵ r = 11.5 inches

∴ C = 2π(11.5)

∴ C = 72.26 inches

You need 72.26 inches to frame the mirror

Learn more:

You can learn more about circles in brainly.com/question/2860697

#LearnwithBrainly

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