Construct a ΔABC in which ∠B = 30°, ∠C = 60° and the length of the perpendicular from the vertex A to the base BC is 4.8 cm.
Steps of Construction
1. Draw a line segment XY.
2. Take any point P on XY and draw PQ⊥XY.
3. Along PQ, set off PA= 4.8 cm.
4. Through A, draw LM∥XY.
5. Construct ∠LAB=30° and ∠MAC = 60° meeting XY at B and C respectively.
Therefore, ΔABC is the required triangle.