Practice30Create account

A triangle is to be constructed with base BC = 7 cm, angle B = 75° and angle C = 45°.
After drawing these two angles at B and C, where is the third vertex A located?

Class 9Constructions of TrianglesGeometry
  • Awhere the two arms of the angles meet
  • Bat the midpoint of BC
  • Con the perpendicular bisector of BC only
  • Danywhere above BC

Step-by-Step Solution

In the ASA construction, the rays drawn from B (at 75°) and from C (at 45°) intersect at a single point, which is vertex A.
Answer: A) where the two arms of the angles meet

Master this chapter in 30 minutes a day.

Don't just memorise the answer — build a daily practice habit.

Practice 5 Similar Questions Free →

All Constructions of Triangles practice questions

More Class 9 Constructions of Triangles practice

Two students each construct a triangle from the same data: base 6 cm, included angle…A triangle ABC is to be constructed with BC = 5 cm, angle B = 90° and AB + AC = 9 cm. In…To construct a triangle similar in idea to ASA, a student is given base BC = 6 cm, angle…A surveyor marks a triangular plot with base 12 m and wants the two other sides to…A triangle is to be constructed with perimeter P cm and base angles 50° and 70°. Two…