Q. 1

# Mark the correct alternative in the following:

If D, G and R denote respectively the number of degrees, grades and radians in an angle, then

A.

B.

C.

D.

Answer :

Let θ be the angle which is measure in degree, radian and grade

We know that 90°=1 right angle

right angle

right angles

right angle ……(1)

Also we know that ,π radians=2 right angles

right angle

right angles

right angles ……(2)

Also we know that, 100 grades=1 right angle

⇒1 grade right angle

⇒G grade right angles

right angles ……(3)

From (1),(2) and (3)

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