Around

Around the circular flowerbed with a radius of 2 m is a sidewalk 80 cm wide. How many square meters does the sidewalk have?

Correct answer:

S =  12.0637 m2

Step-by-step explanation:

r1=2 m x=80 cm m=80:100  m=0.8 m  r2=r1+x=2+0.8=514=2.8 m  S1=π r12=3.1416 2212.5664 m2 S2=π r22=3.1416 2.8224.6301 m2  S=S2S1=24.630112.5664=12.0637 m2



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Do you want to convert area units?

You need to know the following knowledge to solve this word math problem:


 
We encourage you to watch this tutorial video on this math problem: video1

Related math problems and questions: