Question

Question 73

Draw the images P`, Q`, and R` of the points P, Q, and R respectively in the line $n$. Join P`Q` and Q`R` to form an angle P`Q`R`. Measure $\angle PQR$ and $\angle P‘Q‘R‘$. Are the two angles equal?

Answer 1

The images of the points P, Q, and R in the line $n$ are P`, Q`, and R`, respectively.

Image of any point is at the same distance from the line as the point is from the line. So every point on the image side is at the equal relative distance between each other.

Hence, it is clear that, $\angle PQR=\angle P‘Q‘R‘$