Question

Construct a $△PQR$ such that $\angle P={30}^{\circ },\angle Q={60}^{\circ }$ and $PQ=10cm$.

If following are the steps of construction, then which of the following is not a part of construction?

Steps of Construction:

(i) Draw a line segment $PQ=10cm$.

(ii) At $P$, draw a ray making an angle of ${30}^{\circ }$.

(iii) At $Q$, draw another ray making an angle of ${60}^{\circ }$ which intersects the first ray at $R$.

$△PQR$ is the required triangle.

• A. 1
• B. 2
• C. 3
• D. none of these

Answer 1

Answer: (D)

none of these

Steps of Construction:

(i) Draw a line segment $PQ=10cm$.

(ii) At $P$, draw a ray making an angle of ${30}^{\circ }$.

(iii) At $Q$, draw another ray making an angle of ${60}^{\circ }$ which intersects the first ray at $R$.

$△PQR$ is the required triangle.

Hence, (D) wil be correct answer.