Perimeter and Area of Compound Figures

How do you calculate the area of a rectangle?

• Area = length + width

• Area = length × width

• Area = length ÷ width

• Area = length - width

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is a compound figure?

• A shape that is made up of two or more simple shapes.

• A figure that cannot be divided into smaller parts.

• A three-dimensional object with volume.

• A figure that has only one side.

Tags

CCSS.1.G.A.2

What is the significance of units in area and perimeter?

• Units indicate the measurement scale; area is expressed in square units (e.g., m²) and perimeter in linear units (e.g., m).

• Units are irrelevant in calculations of area and perimeter.

• Units only apply to perimeter measurements, not area.

• Units are only necessary for geometric shapes with more than four sides.

Tags

CCSS.3.MD.C.6

What is the definition of perimeter?

• The total distance around the outside of a shape.

• The area enclosed by a shape.

• The length of the longest side of a shape.

• The sum of all angles in a shape.

How do you round numbers in area calculations?

• Round to the nearest whole number or specified decimal place as required by the problem.

• Always round up to the next whole number.

• Round down to the nearest tenth.

• Round to the nearest hundredth regardless of the context.

What is the definition of area?

• Area is the amount of space inside a two-dimensional shape.

• Area is the total length of the perimeter of a shape.

• Area is the measure of how much mass an object has.

• Area is the distance around a two-dimensional shape.

What is the formula for the area of a circle?

• Area = 2π(radius)

• Area = π(radius²)

• Area = π(diameter)

• Area = 4π(radius)

Tags

CCSS.7.G.B.4

What is the formula for the area of a triangle?

• Area = base × height

• Area = 1/2(base × height)

• Area = base + height

• Area = base × height²

Tags

CCSS.6.G.A.1

How do you find the area of a compound figure?

• Calculate the area of each simple shape and then sum them up.

• Multiply the length and width of the entire figure.

• Use the formula for the area of a circle.

• Estimate the area by measuring the perimeter.

How do you calculate the perimeter of a rectangle?

• Perimeter = length + width

• Perimeter = 2(length + width)

• Perimeter = 2(length - width)

• Perimeter = length * width

Tags

CCSS.4.MD.A.3