Answer:
AREA:

CIRCUMFERENCE:

Step-by-step explanation:
The formula that is used to calculate the area of a circle is:

Where "r" is the radius of the circle.
The formula for calculate the circumference of a circle is:

Where "r" is the radius of the circle.
Then, you need to find the radius. This is:

Substituting the radius, you get that the area and the circumference are:
AREA:

CIRCUMFERENCE:

Answer:
Step-by-step explanation:
Answer:
Look if it has 1 regtangle as the base and 4 triangles it is a rectangular pyramid.
If it has 2 circles as the base and a long tube it is a cylinder.
If it has 2 triangles and 3 rectangles it is a triangular prism
Lastly if it 6 sides of rectangles and squares it is a rectangular prism
Even numbers are divided by two
Even numbers are easier to cope with in math problems
There are only odd prime numbers