Questions: Use your equation to find the approximate area of the disk. You can use 3.14 as an approximation for π. A = π * 18^2 The area of the disk is about square cm.

Use your equation to find the approximate area of the disk.

You can use 3.14 as an approximation for π.

A = π * 18^2

The area of the disk is about square cm.
Transcript text: Use your equation to find the approximate area of the disk. You can use 3.14 as an approximation for $\pi$. \[ A=\pi \cdot 18^{2} \] The area of the disk is about $\square$ square cm.
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Solution

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Solution Steps

Step 1: Calculate the square of the radius

The radius is given as 18 cm. The square of the radius is 182=1818=32418^2 = 18 * 18 = 324.

Step 2: Multiply by pi

The formula for the area of a circle is A=πr2A = \pi r^2. We are given an approximation of π3.14\pi \approx 3.14. So, the area is approximately 3.143243.14 * 324.

Step 3: Calculate the approximate area

3.14324=1017.363.14 * 324 = 1017.36

Final Answer

1017.36

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