Changing a Scale Answers

What would you call the segment that connects the edges of the penny and passes through the center? The is the distance from the center of the penny to the edge of the penny. What is the term for the distance around the edge of the penny?

The is the distance from the center of the penny to the edge of the penny.

What is the term for the distance around the edge of the penny?

The diameter is mm. The circumference in terms of is mm. Using for , the approximate value of the circumference is mm.

A penny is 1.9 cm wide. What is the circumference of a penny? Approximate using = 3.14 and round the answer to the nearest tenth if necessary.

The Russian ruble coin has a radius of 10.25 mm. What is the circumference in terms of ?

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The Japanese 5 yen coin has a hole in the middle. The diameter of the coin is 22 mm and the diameter of the hole is 5 mm. What is the difference between the outer edge and the inner edge of the coin? If necessary, round your answer to the nearest tenth.

The circumference in terms of is mm.

Using for , the approximate value of the circumference is mm.