Circles: SOL 6.7 Study Guide

What is the formula for circumference of a circle given the diameter?

• C = π r
• C = 2 π r
• C = π d
• C = 2 π d

Tags

CCSS.7.G.B.4

The _____ is the distance from the center to any point on the circle.

• diameter
• radius
• π
• center

The distance across a circle through its center is called the _____.

• diameter
• radius
• π
• center

If you are given the diameter, how can you calculate the radius?

• Multiply the diameter by 2
• Divide the diameter by 2
• Add 2 to the diameter
• Subtract 2 from the diameter

Tags

CCSS.7.G.B.4

Which segment is the diameter?

• AC
• BD
• LM
• CE

Which segment is a radius?

• LM
• DC
• BD
• ML

What is the formula for finding circumference?

select ALL that apply

• c = π d

• c = 2 π r

• d = 2 r

• r = d/2

Tags

CCSS.7.G.B.4

What is the formula for finding area of a circle?

• C = π r²

• A = π r²

• A = π r² / 2

• C = 2 π r

Tags

CCSS.7.G.B.4

What number is pi?

• 1.41...

• 2.00...

• 3.14...

• 5.14...

Tags

CCSS.HSG.GMD.A.1

π is a ratio.

It compares a circle's circumference

to its _________________.

• radius

• diameter

• area

• itself

Tags

CCSS.7.G.B.4