Chapter 11.8, Problem 13WE

To determine

To Estimate: The area of the region.

Answer to Problem 13WE

  $0.125m^2$

Explanation of Solution

Given: Of $100darts$ thrown, $80$ hit the square. Of these $10$ hit the red region.

  

  $10$ of the $80$ land on the red region.

So area of re region is $\frac{10}{80}=\frac{1}{8}$ of the area of square.

Area of blue square

  ${(s)}^2=1^2=1$

Area of red region.

  $1\times \frac{1}{8}=\frac{1}{8}{m}^2=0.125m^2$

Hence, area of red region is $0.125m^2$ .