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Question
Consider the circle.

(4 points)
7th Grade Math Formula Sheet

Use 3.14 for π
and do not round each answer.

Diameter =
units

Circumference =
units

Radius =
units

Area =
square units

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1 answer

To fill out the information for the circle, you will need to know either the radius or the diameter. Here are the relevant formulas using \( \pi = 3.14 \):

  1. Diameter: If you have the radius \( r \): \[ \text{Diameter} = 2r \]

  2. Radius: If you have the diameter \( d \): \[ \text{Radius} = \frac{d}{2} \]

  3. Circumference: \[ \text{Circumference} = \pi d \quad \text{or} \quad \text{Circumference} = 2\pi r \]

  4. Area: \[ \text{Area} = \pi r^2 \]

Example:

Let's assume that the diameter of the circle is 14 units:

  1. Diameter: \[ \text{Diameter} = 14 \text{ units} \]

  2. Radius: \[ \text{Radius} = \frac{14}{2} = 7 \text{ units} \]

  3. Circumference: \[ \text{Circumference} = 3.14 \times 14 = 43.96 \text{ units} \]

  4. Area: \[ \text{Area} = 3.14 \times (7^2) = 3.14 \times 49 = 153.86 \text{ square units} \]

Complete Answers (if Diameter = 14 units):

  • Diameter = 14 units
  • Circumference = 43.96 units
  • Radius = 7 units
  • Area = 153.86 square units

Please replace the values based on your specific requirements! If you have a different diameter or radius, you can apply the formulas accordingly.