(2 4/5)^o = ______^o _______'

In a circle of diameter 40 cm the length of a chord is 20 cm.Then the length of the minor arc corresponding to the chord is

Give two concentric circles of radius 4 and r, find the value of r if two arcs of the same length on the two concentric circles subtend angles of 45^o and 60^o at the centre.

A wheel whose radius is 15 inches is turning at a speed of 300 revolutions per minute.Find the speed in miles per hour of a point on the wheel?

-460^o lie in ___________.

15^o 28' 32'' + 12^o 32' 58'' =

2π/9 radians = _________.

A wheel makes 180 revolutions in one minute.Through how many radians does it turn in one second?

23^o 20^o = _________ radians.

Express in radians, the measure of the internal angles of a pentagon