2 years ago

A circular mirror has a circumference of 30 pi inches. What is the area of mirror?

Mathematics

1 answer:

Aleonysh [2.5K]2 years ago

6 0

Answer:

Step-by-step explanation:

circumference = 2πr

2πr = 30π inches

$r=\frac{30\pi}{2\pi}=15in$

Area = πr² = π*15*15 = 225π square inches

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Answer:

Proved (See Explanation)

Step-by-step explanation:

Show that 3ⁿ⁺⁴ - 3ⁿ is divisible by 16.

This is done as follows

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