Angles in Standard Position
Part of the Angles and the Unit Circle section of Coddy's Trigonometry journey. Lesson 5 of 55.
An angle is in standard position when it follows three rules. Its corner (the vertex) is at the origin. It starts on the positive x-axis. A positive angle turns counterclockwise.
The line where the turn stops is the terminal side.
The two axes split the plane into four parts, called quadrants I to IV. They go counterclockwise, starting at the upper right. 225° is half a turn and 45° more. It ends down and to the left, in quadrant III. An angle on an axis, like 90°, is in no quadrant.
Challenge
Drag the point round the circle until the angle is 300° in standard position.
Then press Check.
Start the lesson to read it in the interactive player and track your progress.
All lessons in Angles and the Unit Circle
1A Point on a Circle
Height on the CircleAcross: the CosineSame Height, Two AnglesRecap: Height and Across4Radians
What a Radian IsDegrees to RadiansRadians to DegreesRadians Without πTurns in RadiansRecap: Radians5Arc Length and Sector Area
Arc LengthArcs From DegreesFinding the AngleSector AreaRecap: A Slice of Pizza