How many degrees are in a stright line?

Answer 1

A right angle is the angle between two perpendicular lines, and, as such, has no area. You could make a right triangle from such an intersection of lines, but you need more info before you can find the area. A right angle is measured as 90 degrees or π/2 radians.

Answer 2

Determine if an angle is a right angle by using a protractor.

Answer 3

A 'right' angle is

There are 90o in a right angle. A right angle is one-quarter of a full circle i.e. 360o.

=

Answer 4

There are 180 degrees in a straight line.

Answer 5

180 degrees