PDF chapter test TRY NOW
Step 1: Draw a line segment \(PA\).
![output-onlinepngtools (27).png](https://resources.cdn.yaclass.in/8e946cfc-56ec-410c-82e5-2effccf10831/outputonlinepngtools27.png)
Step 2: Place the protractor on the line segment \(PA\) and the mid point of the protractor at point \(P\), as shown in the figure.
![output-onlinepngtools (30).png](https://resources.cdn.yaclass.in/ce6606c1-d6bd-4a92-87d8-c7b2aa466cea/outputonlinepngtools30.png)
Step 3: On \(PA\) from the right side of the protractor start counting from \(0°\) in the ascending order (counter-clockwise direction) and finally mark a point \(Q\) using a sharp pencil at the point \(90°\) on the semicircular edge of the protractor.
![output-onlinepngtools (36).png](https://resources.cdn.yaclass.in/3ccfbf4c-cfbc-4449-9176-e1f2936e852c/outputonlinepngtools36.png)
Step 4: Remove the protractor and join \(PQ\).
![output-onlinepngtools (6).png](https://resources.cdn.yaclass.in/b1ed2637-9078-4bc7-9a23-e2872e9d5886/outputonlinepngtools6.png)
We get the required angle \(∠APQ\) \(=\) \(90°\).