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Exercise 7
1
Find the circumference of a satellite dish that has a diameter of 21 m.
Take m to be 37.​

A satellite dish is roughly in the shape of a circle. So, the equation for cicumferance of a circle is:

C = 2r.

However, you are given the diamter in this equation. To get the radius, you will simply cut the diameter in half:

21/2 = 10.5

Now, to get the circumference of the satellite dish, you would simply plug in the numbers:

C = 2(10.5)

Therefore, C = 21 or roughly 65.97 meters.