Question

Part B

Answer 1

Given:

• Radius of 50 point region= 3 in
• Width of other regions= 4 in

To find:

The area of the target which earns 30 points on a throw.

Solution:

$\huge\boxed{Formula: a= \pi{r}^{2}}$

$4+3$

$=7$

Let's solve

We have to find the answer in terms of π so, we'll just have to multiply the radius by itself.

$a={7}^{2}$

$\large\boxed{a= 49 \pi\: {in}^{2}}$

Hence, the area of the target which earns 30 points on a throw is 49π square inches.

Answer= Option B