Parts of a Circle

The distance around a circle is called the _________.

• radius

• diameter

• circumference

• area

The distance between one side of a circle through the center to the other side is the ___________.

• circumference

• diameter

• radius

• area

What is the value of pi? (hint: look at your formula sheet)

• 3,140

• 33/2

• apple

• 3.14

Tags

CCSS.HSG.GMD.A.1

Which answer best describes a radius?

• radius is five times larger than a diameter

• radius = half of the diameter

• a radius is 1/4 the size of the diameter

• diameter is the radius x 2

Tags

CCSS.7.G.B.4

What part is the area of any geometric figure?

• the length of one side

• the number squared

• the distance around the outside

• the number of square units inside

If the diameter of a circle is 18 cm, what is the length of the radius?

• 9 cm

• 3 cm

• 36 cm

• 6 cm

Tags

CCSS.7.G.B.4

The radius of a circle is 7 inches. What is the length of the diameter?

• 3.5 inches

• 21 inches

• 10.5 inches

• 14 inches

Tags

CCSS.7.G.B.4

If the diameter of a circle is 32 m, what is the radius?

• 64 m

• 20 m

• 16 m

• 12 m

Tags

CCSS.7.G.B.4

The radius of a circle = 6.5 mm (very small). What is the diameter of the circle?

• 3.25 mm

• 13 mm

• 26 mm

• 6.1 mm

Tags

CCSS.7.G.B.4

TRUE OR FALSE: A radius is longer than a diameter.

• TRUE

• FALSE