Surface Area 7th grade

Front

What is the definition of surface area?

Back

Surface area is the total area that the surface of a three-dimensional object occupies.

Front

How do you calculate the surface area of a cube?

Back

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

Front

What is the relationship between diameter and radius?

Back

The diameter is twice the radius. Formula: d = 2r.

Front

How do you find the radius if you know the diameter?

Back

To find the radius, divide the diameter by 2. Formula: r = d/2.

Front

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

Back

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

Front

What is a similar figure in geometry?

Back

Similar figures are shapes that have the same shape but different sizes; their corresponding angles are equal and their sides are proportional.

Front

How do you find the surface area of a sphere?

Back

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

Front

What is the formula for the area of a circle?

Back

The area of a circle is calculated using the formula: A = πr², where r is the radius.

Front

If two figures are similar, how do you find the missing side length?

Back

Use the ratio of the corresponding sides of the similar figures to set up a proportion and solve for the missing side.