Surface Area

Front

What is Surface Area?

Back

Surface area is the total area that the surface of a three-dimensional object occupies. It is measured in square units.

Front

How do you calculate the surface area of a cube?

Back

The surface area of a cube is calculated using the formula: SA = 6a², where 'a' is the length of one side.

Front

What is the formula for the surface area of a rectangular prism?

Back

The surface area of a rectangular prism is calculated using the formula: SA = 2(lw + lh + wh), where 'l' is length, 'w' is width, and 'h' is height.

Front

How do you find the surface area of a cylinder?

Back

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

Front

What is the surface area of a sphere?

Back

The surface area of a sphere is calculated using the formula: SA = 4πr², where 'r' is the radius.

Front

Calculate the surface area of a cube with side length 4 cm.

Back

SA = 6(4 cm)² = 96 cm².

Front

Calculate the surface area of a rectangular prism with dimensions 3 cm, 4 cm, and 5 cm.

Back

SA = 2(3*4 + 3*5 + 4*5) = 94 cm².

Front

What is the surface area of a cylinder with radius 3 cm and height 5 cm?

Back

SA = 2π(3)(5 + 3) = 48π cm² or approximately 150.8 cm².

Front

Calculate the surface area of a sphere with a radius of 7 cm.

Back

SA = 4π(7)² = 196π cm² or approximately 615.75 cm².

Front

What is the surface area of a pyramid with a base area of 50 m² and a slant height of 10 m?

Back

SA = Base Area + (1/2 * Perimeter * Slant Height). Calculate perimeter and apply the formula.