circle

Area of the circle

• πr²

• πr

• πr³

• π

Tags

CCSS.7.G.B.4

What is the formula for the circumference of a circle?

• 2πr

• πr²

• 2πr²

• π

Tags

CCSS.7.G.B.4

What is the diameter of a circle if the radius is 5 units?

• 10 units

• 5 units

• 15 units

• 25 units

Tags

CCSS.7.G.B.4

What is the relationship between the radius and diameter of a circle?

• Diameter = 2 x Radius

• Radius = 2 x Diameter

• Diameter = Radius²

• Radius = Diameter²

Tags

CCSS.7.G.B.4

What is the formula for the area of a circle?

• πr²

• 2πr

• πr

• 2πr²

Tags

CCSS.7.G.B.4

If the circumference of a circle is 20π units, what is the radius?

• 10 units

• 5 units

• 15 units

• 20 units

Tags

CCSS.7.G.B.4

What is the relationship between the circumference and diameter of a circle?

• Circumference = π x Diameter

• Circumference = 2 x Diameter

• Circumference = 2π x Diameter

• Circumference = π x Radius

Tags

CCSS.7.G.B.4

Radius denoted by

• r

• y

• f

• g

Students were surveyed about their favorite sports to play in phys.ed. The results are represented in this circle graph. If 48 students were surveyed, how many chose soccer?

• 10
• 12
• 15
• 14