- A29
- B20
- C41
- D25
Step-by-Step Solution
The perpendicular from the centre bisects the chord: , so cm.
Answer: A) 29
A chord 40 cm long lies 21 cm from the centre of a circle. What is the radius of the circle? (answer in cm)
Competition practiceGeometry
Master this topic in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Geometry practice questions
More Geometry practice
The radii of two circles with the same centre are 7 cm and 25 cm. A chord of the bigger…The areas of two similar triangles are in the ratio 9 : 16. The ratio of their…From a point P that is 29 cm from the centre of a circle of radius 20 cm, a tangent PT…Two angles of a triangle are 55° and 65°. The measure of the third angle is: (answer in…The areas of two similar triangles are in the ratio 16 : 25. Find the ratio of their…