Reflex angle

192 Degree Angle

16π/15 ≈ 3.351032 radians · 8/15 (53.33%) of a circle

Diagram of a 192 degree angle192°
Reflex angle: 192°

Key facts

192°

Angle type
Reflex angle
Explement (adds to 360°)
168°
Radians
16π/15 ≈ 3.351032
Open 192° in the online protractor

A 192° angle is a reflex angle: it is bigger than a straight line (180°) but less than a full turn (360°). It is the "outside" of a 168° angle: together they make a full 360° circle.

192° is 8/15 of a full circle, or 16π/15 radians. The minute hand of a clock sweeps 192° in 32 minutes. If you face north and turn 192° clockwise, you end up facing between S and SSW (closest to south-southwest (SSW)).

192° angle facts

Angle type Reflex angle (between 180° and 360°)
Explement (adds to 360°) 168°
Radians 16π/15 ≈ 3.351032
Gradians 213.3333 grad
Fraction of a turn 8/15 (53.33%)
Degrees, minutes, seconds 192° 0′ 0″
Compass bearing between S and SSW (closest to south-southwest (SSW))

Trigonometric values of 192°

FunctionValue
sin 192° −0.207912
cos 192° −0.978148
tan 192° 0.212557

192° on a protractor

Protractor showing 192 degrees0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350192°
On a 360° protractor, read 192° directly going counter-clockwise from 0°. Try it in the interactive protractor →

How to draw a 192° angle with a protractor

  1. Subtract from 360°: 360° − 192° = 168°. A standard protractor only goes to 180°, so you draw the smaller angle first.
  2. Draw a straight line with a ruler and mark the vertex at one end.
  3. Place the protractor's center mark on the vertex, line up the 0° baseline with your line, and make a dot at 168°.
  4. Join the vertex to the dot. The inside angle is 168°; the outside angle, going the long way around, is 192°. Draw the angle arc on the outside and label it 192°.
  5. With a 360° protractor you can skip the subtraction: put 0° on your first line and mark 192° directly.

Drawing it a 192° angle without a protractor (rise and run method)

  1. 192° = 180° − 12°. Draw a straight line, pick a vertex on it, and build a 12° angle on one side as follows; the angle on the other side of the new line is 168°.
  2. Draw a straight baseline and measure exactly 10 inches along it from the vertex.
  3. At the 10-inch mark, draw a short line straight up at 90° (use a carpenter's square or the corner of a sheet of paper).
  4. Measure 2.13 inches (about 2 1/8″) up that line and make a mark.
  5. Join the mark to the vertex. The angle at the vertex is 12°, because tan 12° ≈ 0.2126.
  6. That gives you 168°. The outside (reflex) angle is 192°.

Where you see 192° angles

  • The Earth turns 192° on its axis in about 12 h 48 min.
  • A 192° reflex angle is what you measure when you go the "long way" around, like the outside corner of a building or a turn of more than half a circle.

192° angle FAQ

What type of angle is 192°?

A 192° angle is a reflex angle, because it is between 180° and 360°.

Does a 192° angle have a complement or supplement?

No. Complements add up to 90° and supplements to 180°, and 192° is already larger than both. What it does have is an explement (conjugate) of 168°, the angle that completes a full 360° circle.

How many radians is 192 degrees?

192° = 16π/15 radians ≈ 3.351 rad. To convert degrees to radians, multiply by π/180: 192 × π/180 = 16π/15.

How do I measure a 192° angle on my screen?

Open the online protractor with 192° preset, or type 192 into its "Type an angle" box. You can then drag the arms onto your own lines to compare.