Geometrymedium · Past Paper
In a cyclic quadrilateral, if the ratio of two opposite angles is 4:5, find the larger angle.
A80 degrees
B100 degrees
C120 degrees
D140 degrees
✓ Correct Answer: B — 100 degrees
4x + 5x = 180 => 9x = 180 => x = 20. Larger angle = 5 * 20 = 100 degrees.
Share this question
More from Geometry
- What is the sum of two angles that form a linear pair?
- Find the equation of the line passing through the origin and the point (2, 4).
- If the circumference of a circle and the perimeter of a square are equal, which has the larger area?
- The area of the triangle formed by the axes and the line x/a + y/b = 1 is:
- If an angle is 180 degrees, it forms a: