- A34
- B62
- C28
- D31
Step-by-Step Solution
Third side satisfies 9-7 < < 9+7, i.e. 2 < < 16. Max whole-number . Maximum perimeter = 7 + 9 + 15 = 31 cm.
Answer: D) 31
The lengths of two sides of a triangle are 7 cm and 9 cm.
The perimeter of the triangle is a whole number. What is the maximum possible perimeter?
Class 9Inequalities in a TriangleGeometry — Triangles
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
Angles B and C of triangle ABC both measure 70°. A student says side AB equals side AC…In any triangle, the sum of two sides is greater than twice the median to the third…P is any point inside triangle ABC. Using the result that the sum of distances from an…In any triangle, the side opposite the greater angle is:In triangle ABC, angle A = 80°, angle B = 60°, angle C = 40°. Which is the longest side?