Surface Area of prisms and cylinders

Front

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

Back

SA = 2πr(h + r), where r is the radius and h is the height.

Front

How do you calculate the surface area of a rectangular prism?

Back

SA = 2lw + 2lh + 2wh, where l is length, w is width, and h is height.

Front

What does 'SA' stand for in geometry?

Back

SA stands for Surface Area.

Front

What is the surface area of a cylinder with a radius of 5 inches and a height of 10 inches?

Back

SA = 2π(5)(10 + 5) = 471.24 in² (approximately).

Front

What is the significance of the base area (B) in the surface area formula?

Back

B represents the area of the base of the prism or cylinder, which is used in calculating the total surface area.

Front

What is the surface area of a box with dimensions 8 in. by 3 in. by 2 in.?

Back

SA = 2(8*3) + 2(8*2) + 2(3*2) = 84 in².

Front

What is the relationship between surface area and wrapping paper needed for a present?

Back

The surface area of the present determines the amount of wrapping paper needed to cover it completely.

Front

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

Back

Lateral SA = 2πrh, where r is the radius and h is the height.

Front

How do you find the surface area of a prism?

Back

Add the areas of all the faces of the prism.

Front

What is the surface area of a cylinder with a diameter of 10 inches and a height of 5 inches?

Back

SA = 2π(5)(5 + 5) = 314.16 in² (approximately).