Circle Basic

Jacob is painting a circular picture on his wall.  If the painting has a diameter of 4 ft, how much paint will he need to cover the inside of the circle?  Is this question asking you to find the area, circumference, or neither?

• area

• circumference

• neither

Tags

CCSS.7.G.B.4

Find the circumference.

• None of the above

Tags

CCSS.7.G.B.4

Alex has trained his puppy, Popper, to jump through a ring. According to Alex's measurements and calculations, the ring has a diameter of 3.5 feet. What is the ring's circumference (use 3.14 for pi)?

• 21.98 ft

• 38.47 square ft

• 10.99 ft

• 9.62 square ft

Tags

CCSS.7.G.B.4

Find the area of the circle with radius 3 cm below.

• none of the above

Tags

CCSS.7.G.B.4

What is AB?

• diameter

• center

• circumference

• radius

Determine the radius of the penny.

• 361 mm²

• 38 mm

• 9.5 mm

• 4.4 mm

Tags

CCSS.7.G.B.4

A clock face has a diameter of 10 inches. What is the approximate area of the clock face? Use 3.14 for pi.

Tags

CCSS.7.G.B.4

Find the diameter. (Hint: how can we find the missing side of a right triangle?)

• 31 cm

• 25 cm

• 15.5 cm

• 12.5 cm

Tags

CCSS.HSG.C.A.2

A segment that has one endpoint at the center and the other endpoint on the circle is the __________.

• diameter

• chord

• radius

• secant

A tangent line of a circle is...

• It's diameter

• It's radius

• It's circumference

• A line that touches the circle only once