4.1 linear speed and arc length

Which of the following can be used to calculate the circumference of a circle? (SELECT ALL THAT APPLY)

What is the circumference?

• 50

• 96

• 24

• 18

Find the arc length.  The angle given is π/4. Leave your answer in terms of π.

• 7π/4

• 7π/2

• 1π/8

• 45π
• π/56

Find the length of the arc.

• 10π cm

• 15π cm

• 5π cm

• 2π/3 cm

• 2π/45 cm

Tags

CCSS.HSG.GMD.A.1

Find the length of the arc.

• 31.42cm

• 15.71cm

• 282.74cm

• 23.56cm

FIND THE ARC LENGTH OF THE BOLDED ARC

• A
• B
• C
• D

The arc length from A to B is 5π/3. Find the radius of the circle.

• 6

• 5

• 4

• 3

• 2

Tags

CCSS.HSF.TF.A.1

CCSS.HSG.C.B.5

Find the arc length of the circle.

Alison is jogging on a circular track that has a radius of 140 feet.  She runs along the track from point R to point N, a distance of 230 feet. Find to the nearest degree, the measure of minor arc RN. (angle)

• 47
• 74
• 94
• 123

When she is outdoors, Tasha, the dog, is tied to a stake in the center of a circular area of radius 24 feet. The angle between her dog house and her favorite hydrant is 165 degrees.  What is the length of the arc from her dog house to the hydrant, following minor arc DG, to the nearest 10 feet.

• 50

• 40

• 60

• 70

• 80