Answer:
2. 615.44 square inches
3. 314 square inches
4. 78.5 square inches
5. 254.34 square inches
Explanation:
The area of a circle is pi*r^2, and d/2=r.
2. Since we're given the radius, pi*14^2=615.44 square inches.
3. Since we're given the diameter, pi*(20/2)^2=314 square inches.
4. Since we're given the radius, pi*5^2=78.5 square inches.
5. Since we're given the radius, pi*9^2=254.34 square inches.