Calculating Irregular Perimeter and Area

The video tutorial explains how to determine the perimeter and area of a composite figure consisting of a square and two half circles. It covers the formulas for calculating the perimeter and area of circles and squares, and demonstrates the calculation process step-by-step. The tutorial also includes rounding instructions for the final results.

What shapes make up the figure whose perimeter and area are being calculated?

• Two squares

• A square and two half circles

• A square and a circle

• Two circles

What is the formula for the circumference of a circle?

• 2πd

• πr^2

• πd

• 2πr

Tags

CCSS.7.G.B.4

How do you calculate the perimeter of a square?

• s + s

• 4s

• 2s

• s^2

Tags

CCSS.4.MD.A.3

What is the perimeter of the figure if s is 8 inches?

• 16 + 4π inches

• 24 + 8π inches

• 16 + 8π inches

• 32 + 8π inches

Tags

CCSS.3.MD.D.8

How is the perimeter rounded to two decimal places?

• 40.13 inches

• 42.13 inches

• 41.13 inches

• 41.12 inches

Tags

CCSS.3.MD.D.8

What is the formula for the area of a circle?

• 2πr^2

• πr^2

• πd

• πr

Tags

CCSS.7.G.B.4

How do you calculate the area of the figure?

• s^2 + πr

• s^2 + πr^2

• s^2 + 2πr^2

• 2s^2 + πr^2

Tags

CCSS.7.G.B.4

What is the radius of the circles if the diameter is 8 inches?

• 2 inches

• 4 inches

• 8 inches

• 16 inches

Tags

CCSS.7.G.B.4

What is the exact area of the figure?

• 32 + 16π square inches

• 64 + 8π square inches

• 32 + 8π square inches

• 64 + 16π square inches

What is the area of the figure rounded to two decimal places?

• 113.27 square inches

• 114.26 square inches

• 114.27 square inches

• 115.27 square inches

Tags

CCSS.7.G.B.4