Question

what is radian measure

Answer 1

its like a measurement of angles represented by pi. for eg: 90 degrees translates to pi/2.the value of pi in radian measurement is 180

Answer 2

Radians are just a different scale for measuring angles...like miles and kilometers are different ways of measuring distances.
There are pi radians in 180 degrees...or about 3.14 radians in every 180 degrees

Answer 3

A second way to measure angles. This type of measure is especially useful in calculus. to define a radian, you can use a central angle of a circle, one whose vertex is the center of the circle. as shown in the figure

Answer 4

Because the circumference of a circle is 2pir units, it follows that a central angle of one full revolution (counter clockwise) corresponds to an arc length of s = 2pir. moreover, because 2pi = 6.28, there are just over six radius lengths in a full circle, as shown in the figure. because the units of measure for s and r are the same, the ratio s/r has no units - it is simply a real number

Answer 5

your right

Answer 6

i radian is the angle subtendedat the centre of a circle by an arc whose length is equal to its radius.

Answer 7

rad = degree * 180/pi