UPSKILL MATH PLUS

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Learn more**Step 1:**Draw a line segment \(PA\).

**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.

**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.

**Step 4**: Remove the protractor and join \(PQ\).

We get the required angle \(∠APQ\) \(=\) \(90°\).