Surface Area of Cylinders

Front

What is the formula for the surface area of a cylinder?

Back

The surface area (SA) of a cylinder is given by the formula: SA = 2πr(h + r), where r is the radius and h is the height.

Front

How do you calculate the radius from the diameter of a cylinder?

Back

The radius (r) is half of the diameter (d). So, r = d/2.

Front

What is the value of π (pi) approximately?

Back

π (pi) is approximately 3.14.

Front

If a cylinder has a radius of 3 and a height of 5, what is its surface area?

Back

Using the formula SA = 2πr(h + r), the surface area is approximately 150.8.

Front

What does the term 'surface area' refer to in geometry?

Back

Surface area refers to the total area that the surface of a three-dimensional object occupies.

Front

If the radius of a cylinder is doubled, how does that affect the surface area?

Back

If the radius is doubled, the surface area increases by a factor of four.

Front

What is the surface area of a cylinder with a radius of 4 and a height of 6?

Back

The surface area is 251.2.

Front

What is the surface area of a cylinder with a diameter of 6 and a height of 10?

Back

The surface area is approximately 208.15.

Front

How do you convert the diameter of a cylinder to radius when calculating surface area?

Back

Divide the diameter by 2 to get the radius.

Front

What is the surface area of a cylinder with a radius of 2 and a height of 12?

Back

The surface area is approximately 175.84.