Math Practice 101
Homework Explained - Math Practice 101

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Grade 7 HMH Go Math - Answer Keys


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  Guided Practice  

Find the circumference of each circle.

Find the circumference of each circle. Use 3.14 or \(\mathbf{\frac{22}{7}}\) for π. Round to the nearest hundredth, if necessary.

  • Question 6 (request help)

    A round swimming pool has a circumference of 66 feet. Carlos wants to buy a rope to put across the diameter of the pool. The rope costs $0.45 per foot, and Carlos needs 4 feet more than the diameter of the pool. How much will Carlos pay for the rope?
  • $    

Find each missing measurement to the nearest hundredth. Use 3.14 for π.

  • Question 7 (request help)

    \(\begin{align}
    \text{r} &= \\
    \text{d} &= \\
    \text{C} &= \text{π yd} \\
    \end{align}
    \)
  • r =     yd
    d =     yd
  • Question 8 (request help)

    \(\begin{align}
    \text{r} &\approx \\
    \text{d} &\approx \\
    \text{C} &= 78.8\text{ ft} \\
    \end{align}
    \)
  • \(\text{r } \approx\)    ft
    \(\text{d } \approx\)    ft
  • Question 9 (request help)

    \(\begin{align}
    \text{r} &\approx \\
    \text{d} &\approx 3.4\text{ in}\\
    \text{C} &= \\
    \end{align}
    \)
  • \(\text{r} \approx\)    in
    \(\text{C} =\)    in

  Essential Question Check-In  

  • Question 10 (request help)

    Norah knows that the diameter of a circle is 13 meters. How would you tell her to find the circumference?
  • Type below:

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