Illustrative Mathematics

Front

What is the area of a polygon?

Back

The area of a polygon is the amount of space inside the polygon, measured in square units.

Front

What is the decomposing strategy in finding area?

Back

The decomposing strategy involves breaking down a complex shape into simpler shapes (like rectangles and triangles) to calculate the total area.

Front

What is the subtracting strategy in finding area?

Back

The subtracting strategy involves calculating the area of a larger shape and then subtracting the area of the smaller shape that is not included.

Front

How do you find the area of a triangle?

Back

The area of a triangle can be found using the formula: Area = 1/2 * base * height.

Front

What units are used to measure area?

Back

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

Front

What is an irregular polygon?

Back

An irregular polygon is a polygon that does not have all sides and angles equal.

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

What is the importance of including units when calculating area?

Back

Including units is important because it provides context to the measurement and ensures clarity in communication.

Front

How can you check your area calculation?

Back

You can check your area calculation by verifying the dimensions used and ensuring the correct formula was applied.

Front

What is the area of a shape with a base of 10 cm and a height of 5 cm?

Back

Area = 1/2 * base * height = 1/2 * 10 cm * 5 cm = 25 cm².