Area of a Triangle and Rectangle Review

Front

What is the formula for the area of a rectangle?

Back

The area of a rectangle is calculated using the formula: Area = length × width.

Front

If the area of a rectangle is 72 sq units and one side is 9 units, how do you find the other side?

Back

To find the other side, use the formula: Area = length × width. Rearranging gives: width = Area / length. So, width = 72 / 9 = 8 units.

Front

What is the area of a square with a side length of 5 units?

Back

The area of a square is calculated using the formula: Area = side × side. Therefore, Area = 5 × 5 = 25 sq units.

Front

How do you calculate the area of a triangle?

Back

The area of a triangle is calculated using the formula: Area = (base × height) / 2.

Front

What is the area of a rectangle with a length of 3 cm and a width of 5 cm?

Back

The area is calculated as: Area = length × width = 3 cm × 5 cm = 15 sq cm.

Front

If a rectangle has an area of 49 sq. in. and one side is 7 in., what is the other side?

Back

Using the formula: Area = length × width, the other side is calculated as: width = Area / length = 49 / 7 = 7 in.

Front

What is the area of a triangle with a base of 6 cm and a height of 4 cm?

Back

Using the formula: Area = (base × height) / 2, the area is (6 cm × 4 cm) / 2 = 12 cm².

Front

What units are used to measure area?

Back

Area is typically measured in square units, such as square centimeters (cm²), square meters (m²), square inches (in²), etc.

Front

What is the relationship between the area of a rectangle and its dimensions?

Back

The area of a rectangle is directly proportional to both its length and width; increasing either dimension increases the area.

Front

How can you find the area of a rectangle if you only know the area and one side?

Back

You can find the unknown side by rearranging the area formula: width = Area / length.