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 rectangular prism?

Back

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

Front

What is the unit of measurement for surface area?

Back

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

Front

If a rectangular prism has a length of 5 cm, width of 3 cm, and height of 4 cm, what is its surface area?

Back

Surface Area = 2(5*3 + 5*4 + 3*4) = 2(15 + 20 + 12) = 2(47) = 94 cm².

Front

What is the surface area of a cube with a side length of 6 cm?

Back

Surface Area = 6 * (side length)² = 6 * (6 cm)² = 6 * 36 cm² = 216 cm².

Front

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

Back

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

Front

How do you find the surface area of a sphere?

Back

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

Front

What is the surface area of a rectangular prism with dimensions 9 m (length), 10 m (height), and 12 m (width)?

Back

Surface Area = 2(9*10 + 9*12 + 10*12) = 2(90 + 108 + 120) = 2(318) = 636 m².

Front

What is the total surface area of a shape?

Back

The total surface area is the sum of the areas of all the surfaces (faces) of a three-dimensional object.

Front

If a rectangular prism has a surface area of 130 cm², what does this mean?

Back

It means that the total area of all the outer surfaces of the prism is 130 square centimeters.