Question

measure of straight angle is :
a) 90° b) 180° c) 270° d) 360°​

Answer 1

Answer:

one side of a right angle is 90 degrees so 180 degree

Step-by-step explanation:

When the arms of the angle lie in the opposite direction, they form a straight angle,

Examples:

A straight angle is exactly half of a revolution.

∵ Full revolution is 360° ∴ Half a revolution = 180°

A straight angle can also be formed by adding two right angles i.e. 90° + 90° = 180°

∴ Value of a straight angle = 180°

hope it helps

Answer 2

Answer:

3 and a half straight angle is 270 degree