An arc 15feet long describes an angle of 5 radians at the centre of a circle.Then the radius of the circles is
3 feet
2 feet
5 feet
7 feet
A wheel makes 180 revolutions in one minute.Through how many radians does it turn in one second?
2π radians
3π radians
4π radians
6π radians
If the arcs of the same length in two circles subtend angles of 60o and 75o at the centre then the ratio of their radii is
3 : 2
2 : 5
5 : 3
5 : 4
The angle between two hands when the time is 7.20
95o
105o
115o
100o
63o = ___________.
75 grades
65 grades
60 grades
70 grades
Express in radians, the measure of the internal angles of a pentagon
(2π/5) radian
(3π/5) radian
(4π/3) radian
(4π/5) radian
(2 4/5)o = ______o _______'
2o 48'
2o 47''
2o 50''
2o.58''
The angles of a quadrilateral are in A.P and the greatest angles is 3 times the least angle.The angles of the quadrilateral are
45o,75o,105o,135o
50o,70o,100o,140o
50o,35o,95o,85o
65o,75o,85o,95o
The terminal side of the angle 280o lie
In the first quadrant
In the second quadrant
In the third quadrant
In the fourth quadrant
The difference between two accute angles of a right angled triangle is π/10 radians.Then the angles of traingle are
50o,40o
55o,35o
54o,36o
60o,30o
