Answer:
Area of shaded region = 329.70 cm²
Step-by-step explanation:
Area of a circle = πr²
Area of bigger circle = 3.14 × 11²
= 3.14 × 11 × 11
= 379.94 cm²
Area of smaller circle = 3.14 * 4²
= 3.14 × 4 × 4
= 50.24 cm²
Area of shaded region
= Area of bigger circle - Area of smaller circle
= (379.94 - 50.24) cm²
= 329.70 cm²
Answer:
329.70 cm^2
Step-by-step explanation:
Hope this helps!
B 1436.03 cm3
C 1975.43 cm3
D 11,494.04 cm3
Answer:
b
Step-by-step explanation:
Answer:
B. 1436.03 cm^3
Step-by-step explanation:
What you do is use the formula of the volume of a sphere which is
v=4/3*3.14*r^3.
The r represents radius and the radius is 7 which is half the diameter.
So you will plug 7 into the formula.
V=4/3*3.14*7^3.
V=1436.03 cm^3 which is your answer.