Circles Vocabulary Radius Diameter Area Circumference

Find the circumference of the circle.

• 31.4 cm

• 78.5 cm

• 314 cm

• 15.7 cm

Tags

CCSS.7.G.B.4

The distance across a circle through the center is called what?

• Area

• Diameter

• Circumference

• Radius

Tags

CCSS.HSG.C.A.2

The distance around the outside of a circle is called what?

• Perimeter

• Area

• Circumference

• Diameter

Tags

CCSS.7.G.B.4

What does the point A represent?

• Radius

• Center

• Diameter

• Origin

What is does the green line T represent?

• Circumference

• Perimeter

• Radius

• Diameter

What does the line L represent?

• Center

• Circumference

• Radius

• Diameter

What is the area of this circle?

• 62.59 cm²

• 113.1 cm²

• 19.81 cm²

• 28.26 cm²

Tags

CCSS.7.G.B.4

What is the area of this circle?
d = 8cm

• 16π

• 8π

• 4π

• 36π

Tags

CCSS.7.G.B.4

What two formulas can you use to find the circumference?

• C = π·d

• C = π·r²

• C = 2·π·r

• C = d²

Tags

CCSS.7.G.B.4

Find the circumference of the circle.

• 14.13 cm

• 63.56 cm

• 28.26 cm

• 127.17 cm

Tags

CCSS.7.G.B.4