Practice30Create account

Angle A of triangle ABC measures 100°. Which statement must be true?

Class 9Inequalities in a TriangleGeometry — Triangles
  • ABC is the longest side
  • BBC is the shortest side
  • CAB = AC
  • Dangle B = 80°

Step-by-Step Solution

angle A = 100° is obtuse, hence the largest angle. The side opposite A is BC, so BC is the longest side.
Answer: A) BC is the longest side

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 Inequalities in a Triangle practice questions

More Class 9 Inequalities in a Triangle practice

In any triangle, how does the sum of two sides compare with the third side?Riya marks three points A, B and C on a field. She measures AB = 9 m and BC = 4 m and…A surveyor in Jaipur notes that in triangle ABC, angle A = 40° and angle B = 75°. She…Arjun has three sticks of lengths 5 cm, 9 cm and 14 cm. He tries to join their ends to…Point D lies on side BC of triangle ABC, and it is known that AB > AC. Using the…