Question

What is the angle corresponding to a straight line?

• A. ${180}^o$
• B. ${90}^o$
• C. $0^o$

Answer 1

The correct option is A ${180}^o$

We need to measure the angle corresponding to a straight line.

Step 1: Draw a straight line using a straight edge or ruler.

Step 2: Mark a point on the line other than the line end points


Step 3: Place a protractor over the line to measure the angle subtended by the line such that centre of the protractor lies over the point.


Step 4: Starting from the left side to the point of the line, move along the protractor marking to reach the right side to the point of the line segment. Measure the subtended angle.


Hence, a straight line as an angle of ${180}^o$.