Calculating the Area of a Circle

What shape is the candy described in the video?

• Square

• Triangle

• Rectangle

• Circle

Tags

CCSS.1.G.A.1

CCSS.2.G.A.1

What is the diameter of each candy wafer?

• 64 millimeters

• 8 millimeters

• 16 millimeters

• 32 millimeters

Tags

CCSS.7.G.B.4

How is the radius of a circle related to its diameter?

• It is one-fourth of the diameter.

• It is half of the diameter.

• It is the same as the diameter.

• It is double the diameter.

Tags

CCSS.7.G.B.4

What formula is used to calculate the area of a circle?

• Area = circumference/pi

• Area = pi * radius^2

• Area = diameter * pi

• Area = 2 * pi * radius

Tags

CCSS.7.G.B.4

What is the area of the candy wafer before applying pi?

• 128 square millimeters

• 64 square millimeters

• 32 square millimeters

• 256 square millimeters

Tags

CCSS.7.G.B.4

What is a rough approximation of pi used in the video?

• 3.14159

• 3.14

• 22/7

• 3.142

Tags

CCSS.HSG.GMD.A.1

What is the approximate area of the candy using 3.14 for pi?

• 314 square millimeters

• 64 square millimeters

• 201.06 square millimeters

• 200.96 square millimeters

Tags

CCSS.7.G.B.4

How does the calculator's internal representation of pi improve the calculation?

• It provides a more precise area.

• It reduces the need for rounding.

• It makes the calculation faster.

• It simplifies the formula.

What is the more precise area of the candy using the calculator's pi?

• 200.96 square millimeters

• 201.06 square millimeters

• 314 square millimeters

• 64 square millimeters

Tags

CCSS.7.G.B.4

Why is it useful to know both the exact and approximate area of the candy?

• To compare with other candies

• For more accurate packaging

• To understand the concept of pi

• All of the above

Tags

CCSS.7.G.B.4