Reflex angle

274 Degree Angle

137π/90 ≈ 4.782202 radians · 137/180 (76.11%) of a circle

Diagram of a 274 degree angle274°
Reflex angle: 274°

Key facts

274°

Angle type
Reflex angle
Explement (adds to 360°)
86°
Radians
137π/90 ≈ 4.782202
Open 274° in the online protractor

At 274°, this is a reflex angle, which goes more than halfway around a circle. It is the "outside" of an 86° angle: together they make a full 360° circle.

274° is 137/180 of a full circle, or 137π/90 radians. If you face north and turn 274° clockwise, you end up facing between W and WNW (closest to west (W)).

274° angle facts

Angle type Reflex angle (between 180° and 360°)
Explement (adds to 360°) 86°
Radians 137π/90 ≈ 4.782202
Gradians 304.4444 grad
Fraction of a turn 137/180 (76.11%)
Degrees, minutes, seconds 274° 0′ 0″
Compass bearing between W and WNW (closest to west (W))

Trigonometric values of 274°

FunctionValue
sin 274° −0.997564
cos 274° 0.069756
tan 274° −14.300666

274° on a protractor

Protractor showing 274 degrees0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350274°
On a 360° protractor, read 274° directly going counter-clockwise from 0°. Try it in the interactive protractor →

How to draw a 274° angle with a protractor

  1. Subtract from 360°: 360° − 274° = 86°. 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 86°.
  4. Join the vertex to the dot. The inside angle is 86°; the outside angle, going the long way around, is 274°. Draw the angle arc on the outside and label it 274°.
  5. With a 360° protractor you can skip the subtraction: put 0° on your first line and mark 274° directly.

Drawing it a 274° angle without a protractor (rise and run method)

  1. Draw a straight baseline and measure 0.7 inches (about 11/16″) along it from the vertex.
  2. At that mark, draw a line straight up at 90° and measure exactly 10 inches up it.
  3. Join the top mark to the vertex. The angle at the vertex is 86°, because tan 86° ≈ 14.3007.
  4. That gives you 86°. The outside (reflex) angle is 274°.

Where you see 274° angles

  • The Earth turns 274° on its axis in about 18 h 16 min.
  • A 274° 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.

274° angle FAQ

What type of angle is 274°?

A 274° angle is a reflex angle, because it is between 180° and 360°.

Does a 274° angle have a complement or supplement?

No. Complements add up to 90° and supplements to 180°, and 274° is already larger than both. What it does have is an explement (conjugate) of 86°, the angle that completes a full 360° circle.

How many radians is 274 degrees?

274° = 137π/90 radians ≈ 4.7822 rad. To convert degrees to radians, multiply by π/180: 274 × π/180 = 137π/90.

How do I measure a 274° angle on my screen?

Open the online protractor with 274° preset, or type 274 into its "Type an angle" box. You can then drag the arms onto your own lines to compare.