8.3 Practice

Solve for the unknown measures in Exercises 1-7.  Leave your answers in terms of pi, unless the problems asks for an approximation.  For approximations, use the pi key on your calculator and round final answers to the hundredths place.  Pay close attention to the difference between the symbol for equality and the symbol for approximate in each problem.

1

Notice the symbol for equality!
Use the numeric keyboard to leave pi in your answer.

Area is exactly equal to _______.

1

Notice the symbol for equality!
Use the numeric keyboard to leave pi in your answer.

Area is exactly equal to _______.

1

Notice the symbol for approximate!
Round your answer to the nearest hundredth.

Area is approximately equal to ______.

1

Notice the symbol for equality!

Radius length is exactly equal to _______.

1

Notice the symbol for equality!
Use the numeric keyboard to write your answer in square root form.

Radius length is exactly equal to _______.

1

Notice the symbol for approximate!
Round your answer to the nearest hundredth.

Radius length is approximately equal to ______.

1

Notice the symbol for equality!
Use the numeric keyboard to leave pi in your answer.

Area is exactly equal to _______.

In Exercises 8-10, the polygons are regular.  Use the "Show Your Work" space to represent your thinking.

1

Show your work using the space provided. Your final answer will be a whole number.

Area is approximately equal to __________.

1

Show your work using the space provided. Your final answer should be rounded to the nearest hundredth.

Apothem length is approximately equal to __________.

1

Show your work using the space provided. Your final answer will be accurate to the nearest tenth.

Perimeter is approximately equal to __________.

Optional Challenge:

1

Find the area of the shaded region. Use the numeric keyboard to write your answer in terms of pi.
The three circles are tangent. Show your work using the provided space.

Notice the symbol for equality!Use the numeric keyboard to leave pi in your answer.Area is exactly equal to _______.

Notice the symbol for equality!Use the numeric keyboard to leave pi in your answer.Area is exactly equal to _______.

Notice the symbol for approximate!Round your answer to the nearest hundredth.Area is approximately equal to ______.

Notice the symbol for equality!Radius length is exactly equal to _______.

Notice the symbol for equality!Use the numeric keyboard to write your answer in square root form.Radius length is exactly equal to _______.

Notice the symbol for approximate!Round your answer to the nearest hundredth.Radius length is approximately equal to ______.

Notice the symbol for equality!Use the numeric keyboard to leave pi in your answer.Area is exactly equal to _______.

Show your work using the space provided. Your final answer will be a whole number.Area is approximately equal to __________.

Show your work using the space provided. Your final answer should be rounded to the nearest hundredth.Apothem length is approximately equal to __________.

Show your work using the space provided. Your final answer will be accurate to the nearest tenth.Perimeter is approximately equal to __________.

Find the area of the shaded region. Use the numeric keyboard to write your answer in terms of pi.The three circles are tangent. Show your work using the provided space.

Notice the symbol for equality!
Use the numeric keyboard to leave pi in your answer.

Area is exactly equal to _______.

Notice the symbol for equality!
Use the numeric keyboard to leave pi in your answer.

Area is exactly equal to _______.

Notice the symbol for approximate!
Round your answer to the nearest hundredth.

Area is approximately equal to ______.

Notice the symbol for equality!

Radius length is exactly equal to _______.

Notice the symbol for equality!
Use the numeric keyboard to write your answer in square root form.

Radius length is exactly equal to _______.

Notice the symbol for approximate!
Round your answer to the nearest hundredth.

Radius length is approximately equal to ______.

Notice the symbol for equality!
Use the numeric keyboard to leave pi in your answer.

Area is exactly equal to _______.

Show your work using the space provided. Your final answer will be a whole number.

Area is approximately equal to __________.

Show your work using the space provided. Your final answer should be rounded to the nearest hundredth.

Apothem length is approximately equal to __________.

Show your work using the space provided. Your final answer will be accurate to the nearest tenth.

Perimeter is approximately equal to __________.

Find the area of the shaded region. Use the numeric keyboard to write your answer in terms of pi.
The three circles are tangent. Show your work using the provided space.