Question

what fraction of a straight angle is a right angle​

Answer 1

Step-by-step explanation:

An angle is a fraction of a circle where the whole circle is 360°. A straight angle is the same as half the circle and is 180° whereas a right angle is a quarter of a circle and is 90°.

Answer 2

Answer:

1/2

Step-by-step explanation:

straight line is 180 degree

therefore

x*180=90

x=90/180

x=1/2