Using a ruler and a pair of compass only,construct triangle ABC such that line BC=7cm, line AB=5cm and angle ABC= 70 degrees
To construct triangle ABC with line BC=7cm, line AB=5cm, and angle ABC=70 degrees, follow these steps:
1. Use the ruler to draw line segment BC with a length of 7cm.
2. Use the compass to draw an arc from point B with a radius of 5cm. Label the intersection of the arc and BC as point A.
3. Use the compass to draw an arc from point C with a radius greater than 7cm so that it intersects the first arc drawn at the desired angle of 70 degrees. Label this intersection point as D.
4. Connect points A and D to complete triangle ABC.
Triangle ABC has been constructed with line BC=7cm, line AB=5cm and angle ABC=70 degrees.