11. The large hand of a big clock is 3m long. How
many cms. does its end move in 10 minutes ?
Solution
In 60 minutes, the minute hand (big hand) turns through 360^{0}.
12. A Horse is tied to a port by a rope 8.1 meters long. If the
horse moves, always keeping the rope tight, Find the distance it
will cover when it traces an angle of 70^{0}
Solution
13. From a circle of radius `a', a sector containing
a central angle of 600 has been cut off, and the remainder is folded
over to form a right circular cone, find the radius of the base
of the cone.
Solution
As shown in the adjoining fig. A sector of central angle 60^{0}
is cut off from the circle, then the remaining larger sector has
central angle

Index
1.1 Angles (Radians & Degrees)
1.2 Arc Length & Area of the circle
Supplementary Problems
Chapter 2
