Question: What is the area of a circle with a diameter of 12.6 in.?

Use 3.14 for pi and round your final answer to the nearest hundredth.

Answer: 124.63

Question: Which explanation can be used to derive the formula for the circumference of a circle?

Answer:

Question:

Answer: As n increases, h approaches r so that rh approaches r².

Question: What is the area of a circle whose radius is 5 ft?

Answer: 25π ft²

Question: The circumference of a circle is 5π cm.

What is the area of the circle?

Answer: 6.25π cm²