Question

What is one sixth of a right angle

Answer 1

15 degrees is 1/6 of a right angle because a right angle is 90 degrees and 90/6 = 15

Answer 2

The magnitude of a right angle is 90°. 
we are asked to find a fraction of 90°. 
one sixth as a fraction is 1/6. 
therefore to find 1/6th of a right angle we can calculate as follows
1/6 of 90
when we have the 'of' function it means to multiply 
$\frac{1}{6} * 90$
numerators are multiplied by numerators and denominators multiplied by denominators 
$\frac{90}{6} = 15$
angle is 15°
therefore 1/6th of right angle is 15°