Surface Area

Front

What is surface area?

Back

The sum of all the areas of all the shapes that cover the object.

Front

How many faces does a cube have?

Back

6

Front

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

Back

6a², where 'a' is the length of a side.

Front

What is the surface area of a cube with a side length of 4 cm?

Back

96 cm².

Front

What is the surface area of a rectangular prism?

Back

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

Front

How do you find the surface area of a cylinder?

Back

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

Front

What is the surface area of a sphere?

Back

4πr², where r = radius.

Front

What is the surface area of a cone?

Back

πr(r + l), where r = radius and l = slant height.

Front

If a cube has a surface area of 150 cm², what is the length of one side?

Back

5 cm.

Front

What is the surface area of a triangular prism?

Back

(base area + lateral area), where lateral area = perimeter of base × height.