Geometrymedium · Past Paper
If the angle between two radii of a circle is 130 degrees, the angle between the tangents at the ends of the radii is:
A50 degrees
B65 degrees
C90 degrees
D130 degrees
✓ Correct Answer: A — 50 degrees
The angle between tangents and the angle between radii are supplementary. 180 - 130 = 50 degrees.
Share this question
More from Geometry
- Find the length of the perpendicular from the origin to the line 3x + 4y = 10.
- Find the slope of the line joining (4, -2) and (4, 8).
- A tangent PA is drawn from an external point P to a circle with center O. If the radius of the circle is 5 cm and the angle APO is 30 degrees, what is the length of OP?
- Two circles touch internally. Their radii are 10 cm and 4 cm. What is the distance between their centers?
- The area of a circle inscribed in a square of side 10 cm is: