Geometryhard · Past Paper
In triangle ABC, if cot A, cot B, cot C are in AP, then a^2, b^2, c^2 are in:
AAP
BGP
CHP
DNone
✓ Correct Answer: A — AP
Using the properties of triangles and trigonometry, if cotangents of angles are in Arithmetic Progression, the squares of the sides are also in AP.
Share this question
More from Geometry
- What is the locus of the center of a circle which touches a given line at a given point?
- An angle's complement is 1/3 of its supplement. Find the angle.
- The angle subtended by a major arc at the center is 250 degrees. What is the angle subtended by the minor arc at the center?
- Which quadrant does the point (-2, -3) lie in?
- Find the slope of the line passing through (1, 2) and (3, 6).