Surface Area Review

Front

What is surface area?

Back

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

Front

How do you calculate 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 = length, w = width, and h = height.

Front

What is the formula for 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 of the cube.

Front

If a cube has a side length of 7 cm, what is its surface area?

Back

The surface area is 294 cm² (SA = 6 * 7² = 294).

Front

What is 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

How do you find 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

What is the surface area of a rectangular prism with dimensions 5 m, 3 m, and 4 m?

Back

The surface area is 62 m² (SA = 2(5*3 + 5*4 + 3*4) = 62).

Front

What is the unit of measurement for surface area?

Back

The unit of measurement for surface area is square units, such as square meters (m²), square centimeters (cm²), or square inches (in²).

Front

If a tent has a surface area of 1400 in², how much material is needed if it costs $0.04 per square inch?

Back

The cost of material needed is $56 (1400 in² * $0.04/in² = $56).

Front

What is the surface area of a cube with a side length of 10 cm?

Back

The surface area is 600 cm² (SA = 6 * 10² = 600).