question_answer

How many degree are there in half a revolution? In one right angle? In one straight angle?

How many right angle makes \[180{}^\circ ,\,\,360{}^\circ \]

 

Answer:

Number of degrees in one complete revolution \[=360{}^\circ \] \[\therefore \] Number of degrees in half revolution                         \[=\frac{1}{2}\times 360{}^\circ =180{}^\circ \] Number of degree in one right angle or \[\frac{1}{4}\]of a revolution \[=\frac{1}{4}\times 360{}^\circ =90{}^\circ \] Number of degree in a straight angle                         \[=\frac{1}{2}\times 360{}^\circ =180{}^\circ \] \[180{}^\circ =\left( \frac{180{}^\circ }{90{}^\circ } \right)\]right angles        = 2 right angles                         \[360{}^\circ =\left( \frac{360{}^\circ }{90{}^\circ } \right)\] right angles         = 4 right angles.