10) What is the name of thin line projecting from the feature and extending beyond dimension line?

11) What is the inclination of oblique strokes in dimensioning in termination and origin indication?

12) What is the name of quadrilateral with four sides are equal and four angles are right angle?

13) What is the name of quadrilateral with all the four sides are different, only two sides are parallel and all four angles are different?

14) What is the sum of included angles in a triangle?