Geometry Unit 10 Review - Perimeter and Circumference

What is the formula for the circumference of a circle?

• $C\ =\ \frac{1}{2}BH$

• $C\ =\ \pi r^2$

• $C\ =\ 2\pi r$

• $C\ =\ BH$

Find the perimeter of the figure...

• 15 feet

• 26 feet

• 20 feet

• 25 feet

What is the perimeter of this figure?

• 20 cm

• 34 cm

• 30 cm

• 19 cm

What is the perimeter of the figure?

• 34 m

• 37 m

• 35 m

• 36 m

Does this picture show the diameter or radius of a circle?

• Diameter
• Radius

Find the circumference of the circle.

• 113.04 in

• 1017.36 in

• 254.34 in

• 56.52 in

Find the perimeter of the figure.  Use 3.14 for pi.

• 20.56 in.
• 17.3 in.
• 17.8 in.
• 31.88 in.

What is the perimeter of this composite shape? (Use 3.14 = π and round to the nearest tenths place)

• 20 cm

• 11 cm

• 24 cm

• 19 cm

Find the perimeter of the figure.

• 86 yd.
• 32 yd.
• 33 yd.
• 53 yd.

What does perimeter mean?

• the amount of space inside a shape

• the amount of space inside a shape divided by two

• the distance around the shape

• half the distance around a shape