Reflex angle

356 Degree Angle

89π/45 ≈ 6.213372 radians · 89/90 (98.89%) of a circle

Diagram of a 356 degree angle356°
Reflex angle: 356°

Key facts

356°

Angle type
Reflex angle
Explement (adds to 360°)
4°
Radians
89π/45 ≈ 6.213372
Open 356° in the online protractor

A 356° angle is reflex because it measures between 180° and 360°. It is the "outside" of a 4° angle: together they make a full 360° circle.

356° is 89/90 of a full circle, or 89π/45 radians. If you face north and turn 356° clockwise, you end up facing between NNW and N (closest to north (N)).

356° angle facts

Angle type Reflex angle (between 180° and 360°)
Explement (adds to 360°) 4°
Radians 89π/45 ≈ 6.213372
Gradians 395.5556 grad
Fraction of a turn 89/90 (98.89%)
Degrees, minutes, seconds 356° 0′ 0″
Compass bearing between NNW and N (closest to north (N))

Trigonometric values of 356°

FunctionValue
sin 356° −0.069756
cos 356° 0.997564
tan 356° −0.069927

356° on a protractor

Protractor showing 356 degrees0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350356°
On a 360° protractor, read 356° directly going counter-clockwise from 0°. Try it in the interactive protractor →

How to draw a 356° angle with a protractor

  1. Subtract from 360°: 360° − 356° = 4°. 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 4°.
  4. Join the vertex to the dot. The inside angle is 4°; the outside angle, going the long way around, is 356°. Draw the angle arc on the outside and label it 356°.
  5. With a 360° protractor you can skip the subtraction: put 0° on your first line and mark 356° directly.

Drawing it a 356° angle without a protractor (rise and run method)

  1. Draw a straight baseline and measure exactly 10 inches along it from the vertex.
  2. 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).
  3. Measure 0.7 inches (about 11/16″) up that line and make a mark.
  4. Join the mark to the vertex. The angle at the vertex is 4°, because tan 4° ≈ 0.0699.
  5. That gives you 4°. The outside (reflex) angle is 356°.

Where you see 356° angles

  • The Earth turns 356° on its axis in about 23 h 44 min.
  • A 356° 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.

356° angle FAQ

What type of angle is 356°?

A 356° angle is a reflex angle, because it is between 180° and 360°.

Does a 356° angle have a complement or supplement?

No. Complements add up to 90° and supplements to 180°, and 356° is already larger than both. What it does have is an explement (conjugate) of 4°, the angle that completes a full 360° circle.

How many radians is 356 degrees?

356° = 89π/45 radians ≈ 6.2134 rad. To convert degrees to radians, multiply by π/180: 356 × π/180 = 89π/45.

How do I measure a 356° angle on my screen?

Open the online protractor with 356° preset, or type 356 into its "Type an angle" box. You can then drag the arms onto your own lines to compare.