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Grade 7 HMH Go Math - Answer Keys
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Guided Practice
Find the area of each circle. Round to the nearest tenth if necessary. Use 3.14 for π. |
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Solve. Use 3.14 for π. |
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Question 4
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A clock face has a radius of 8 inches. What is the area of the clock face? Round your answer to the nearest hundredth.
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Question 5
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A DVD has a diameter of 12 centimeters. What is the area of the DVD? Round your answer to the nearest hundredth.
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Question 6
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A company makes steel lids that have a diameter of 13 inches. What is the area of each lid? Round your answer to the nearest hundredth.
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Find the area of each circle. Give your answers in terms of π. |
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Question 7
(request help)
\(\begin{align}
\text{C} &= 4\text{π}\\
\text{A} &=
\end{align}
\)
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Question 8
(request help)
\(\begin{align}
\text{C} &= 12\text{π}\\
\text{A} &=
\end{align}
\)
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Question 10
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A circular pen has an area of \(\text{64π}\) square yards. What is the circumference of the pen? Give your answer in terms of π
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Essential Question Check-In |
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Question 11
(request help)
What is the formula for the area A of a circle in terms of the radius r?
Type below:
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(show solution)
