Area of Irregular Shapes

Front

What is the area of a shape?

Back

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

Front

How do you find the area of an irregular shape?

Back

To find the area of an irregular shape, you can divide it into smaller regular shapes, calculate the area of each, and then add them together.

Front

What is a square unit?

Back

A square unit is a unit of measure for area, representing a square that is 1 unit long on each side.

Tags

CCSS.3.MD.C.5A

Front

What is the formula for the area of a rectangle?

Back

The area of a rectangle is found by multiplying its length by its width (Area = Length × Width).

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the formula for the area of a triangle?

Back

The area of a triangle is found by multiplying the base by the height and then dividing by 2 (Area = 1/2 × Base × Height).

Tags

CCSS.6.G.A.1

Front

What does 'shaded area' mean in a diagram?

Back

The shaded area in a diagram represents the part of the shape that is filled in or highlighted, indicating the area being measured.

Front

If a shape has an area of 30 square units, what does that mean?

Back

It means that the space inside the shape can fit 30 squares that are each 1 unit long on each side.

Tags

CCSS.3.MD.C.5A

Front

What is the area of a square with sides of 4 units?

Back

The area of a square with sides of 4 units is 16 square units (Area = 4 × 4).

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

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

Back

The area of the rectangle is 15 square units (Area = 5 × 3).

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

How can you estimate the area of an irregular shape?

Back

You can estimate the area of an irregular shape by counting the number of square units that fit inside it or by using grid paper.