Answer:
286.24
Step-by-step explanation:
To calculate the area of the walkway around the fountain, we need to find the area of the larger circle and subtract the area of the fountain.
The area of a circle is given by the formula A=π×r².
Area of the larger circle (with radius 10 meters):
A(larger circle)=π×10²
A(larger circle)=π×100
A[larger circle] =100π
Area of the fountain (with radius 3 meters):
A(fountain)=π×(3)²
=9π
Area of the walkway:
A(walkway)=A(larger circle)−A(fountain)
A(walkway)=100π−9π
=91π
Now, we can approximate the area of the walkway:
A≈91×3.14≈286.24
