Rahul Sofat Solutions for Chapter: Practical Geometry, Exercise 7: EXEMPLAR PROBLEMS

Which of the following angles cannot be constructed using a ruler and compass?

Using the set squares $30°-60°-90°$ and $45°-45°-90°$, we can draw an angle of $75°.$

Infinitely many perpendiculars can be drawn to a given ray.

The number of scales in a protractor for measuring the angles is _____.$\left(\mathrm{Two} / \mathrm{Three} / \mathrm{One}\right)$

Draw a line segment equal to the sum of the two-line segments given in the figure.

Draw an angle of measurement $80°$ and divide it into four equal parts. Check your construction by actual measurement.

Draw an angle equal to the difference of two angles given in figure.

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