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.

Solution

Solution Steps

Step 1: Calculate the square of the radius

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

Step 2: Multiply by pi

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

Step 3: Calculate the approximate area

$3.14 * 324 = 1017.36$