Answer:
Step-by-step explanation:
The formula for determining the area of a circle is expressed as
Area = πr²
Where
π is a constant whose value is 3.14
r represents the radius of the circle.
Considering the inner layer
radius = 2 millimeters
Area of base = 3.14 × 2² = 12.56 mm²
Considering the outer layer,
Radius = 6 mm
Area of base = 3.14 × 6² = 113.04 mm²
Percent of the area of the base of the outer layer that is the area of the base of the inner layer is
12.56/113.04 × 100 = 11.1%
Answer:
The answer is D. water fountain.
Step-by-step explanation:
If you look at the graph for the point (-2.5, 3.0), you need to find -2.5 on the x-axis and 3 on the y-axis. The "Water Fountain" point is past negative two but not quite at 3 yet; it's in between. Then you go up three times. Even though the graph is going by 2's, the point is located exactly in between 2 and 4, which is 3. Hope this helps!
I don’t see a diagram ? Just numbers...
Answer:
C=πd=π·6≈18.84956cm
Step-by-step explanation:
The rotational order is the number of times it can rotate upon itself.
This means the shape has 9 sides.
360 /9 = 40 degrees
