Deck 27: Angular Measurement

Question 1

Degrees, minutes, and ____________________ are used for angular measurements in both the English and metric systems.

Answer 1

seconds

Question 2

1 degree = ____________________ minutes.

Answer 2

60

Question 3

Eleven holes drilled around a circle are equally spaced. How many degrees, minutes, and seconds are between the centers of the holes? Express the answer to the nearest second.

A) 28 degrees 33 minutes 21 seconds
B) 29 degrees 5 minutes 23 seconds
C) 31 degrees 53 minutes 19 seconds
D) 32 degrees 43 minutes 38 seconds

Answer 3

32 degrees 43 minutes 38 seconds

Question 4

How many inches are represented by 7 degrees on the rim of a 9-inch diameter flywheel? Round to the nearest hundredth.

A) 0.53
B) 0.55
C) 0.57
D) 0.59

Question 5

1 circle = ____________________ degrees.

Question 6

What percent of the entire cycle of strokes in an engine is the power stroke to the nearest tenth? Use a 141-degree power stroke. (Remember, it takes two revolutions to complete the entire cycle.)

A) 17.2
B) 18.9
C) 19.6
D) 20.4

Question 7

A regular decagon has ten equal sides and ten equal angles. When a regular decagon is drawn inside (inscribed in) a circle, the radii form equal angles at the center. Find the number of degrees in each angle at the center.

A) 20
B) 36
C) 45
D) 60

Question 8

What part of a circle is a 90 degree angle?

A) 1/6
B) 1/4
C) 1/3
D) 1/2

Question 9

How many degrees are in an eighth of a circle?

A) 45
B) 90
C) 120
D) 180

Question 10

In making a gasket, a mechanic lays off 18 equally spaced holes on the circumference. Find the number of degrees between the centers of the holes.

A) 20
B) 30
C) 36
D) 45