### Home > INT3 > Chapter 9 > Lesson 9.1.2 > Problem9-26

9-26.

Mrs. Albright is trying to cover her tiled classroom floor with rugs to reduce the noise that her students generate when they are working in teams. Her classroom is $20$ feet by $25$ feet. While Mrs. Albright is shopping during the weekend, she notices a sale on $5$-foot circular rugs. If she needs to cover $80\%$ of her classroom floor space to notice a significant reduction in noise, should she buy the rugs from this sale? Homework Help ✎

What is the area of one circular rug with radius $2.5$?

How many rugs fit in the $20$ ft x $25$ ft space?

Is the total area of all the rugs $80\%$ or $.8$ of the $500$ ft2 space?