?
Categories
Account

Triangles

Download Q&A
Q. If a triangle has sides of lengths 5 cm, 12 cm, and 13 cm, what type of triangle is it?
  • A. Acute
  • B. Obtuse
  • C. Right
  • D. Equilateral
Q. If the area of a triangle is 24 cm² and the base is 8 cm, what is the height?
  • A. 6 cm
  • B. 8 cm
  • C. 12 cm
  • D. 3 cm
Q. If the area of a triangle is 24 square cm and the base is 8 cm, what is the height?
  • A. 3 cm
  • B. 6 cm
  • C. 8 cm
  • D. 12 cm
Q. If the area of a triangle is given by the formula A = 1/2 * base * height, what is the area of a triangle with a base of 10 cm and a height of 5 cm?
  • A. 25 cm²
  • B. 50 cm²
  • C. 15 cm²
  • D. 30 cm²
Q. If the lengths of the sides of a triangle are in the ratio 3:4:5, what type of triangle is it?
  • A. Equilateral
  • B. Isosceles
  • C. Scalene
  • D. Right
Q. If the perimeter of an equilateral triangle is 36 cm, what is the length of each side?
  • A. 9 cm
  • B. 12 cm
  • C. 15 cm
  • D. 18 cm
Q. If the perimeter of an isosceles triangle is 24 cm and the length of the base is 8 cm, what is the length of each of the equal sides?
  • A. 8 cm
  • B. 10 cm
  • C. 12 cm
  • D. 6 cm
Q. If the perimeter of an isosceles triangle is 24 cm and the lengths of the two equal sides are 10 cm each, what is the length of the base?
  • A. 4 cm
  • B. 6 cm
  • C. 8 cm
  • D. 10 cm
Q. If the sides of a triangle are in the ratio 3:4:5, which type of triangle is it?
  • A. Equilateral
  • B. Isosceles
  • C. Scalene
  • D. Right-angled
Q. In a triangle, if one angle measures 45 degrees and the other measures 45 degrees, what type of triangle is it?
  • A. Scalene
  • B. Isosceles
  • C. Equilateral
  • D. Right
Q. In a triangle, if the lengths of two sides are 7 cm and 10 cm, what is the range of possible lengths for the third side?
  • A. 3 cm to 17 cm
  • B. 3 cm to 10 cm
  • C. 10 cm to 17 cm
  • D. 7 cm to 10 cm
Q. In a triangle, if the lengths of two sides are 7 cm and 10 cm, which of the following could be the length of the third side?
  • A. 3 cm
  • B. 15 cm
  • C. 5 cm
  • D. 17 cm
Q. In triangle ABC, if angle A is 30 degrees and angle B is 60 degrees, what is the measure of angle C?
  • A. 30 degrees
  • B. 60 degrees
  • C. 90 degrees
  • D. 120 degrees
Q. In triangle DEF, if angle D is 45 degrees and angle E is 45 degrees, what is the type of triangle?
  • A. Scalene
  • B. Isosceles
  • C. Equilateral
  • D. Right
Q. In triangle DEF, if angle D is 45 degrees and angle E is 45 degrees, what type of triangle is DEF?
  • A. Scalene
  • B. Isosceles
  • C. Equilateral
  • D. Right-angled
Q. In triangle DEF, if angle D is 90 degrees and the lengths of the legs are 6 cm and 8 cm, what is the length of the hypotenuse?
  • A. 10 cm
  • B. 12 cm
  • C. 14 cm
  • D. 16 cm
Q. In triangle XYZ, if side XY = 8 cm, side YZ = 6 cm, and side XZ = 10 cm, which of the following is true?
  • A. It is a right triangle.
  • B. It is an obtuse triangle.
  • C. It is an acute triangle.
  • D. It cannot be classified.
Q. In triangle XYZ, if side XY is 8 cm, side YZ is 6 cm, and angle X is 45 degrees, which method can be used to find the length of side XZ?
  • A. Pythagorean theorem
  • B. Sine rule
  • C. Cosine rule
  • D. Area formula
Q. In triangle XYZ, if side XY is 8 cm, side YZ is 6 cm, and side XZ is 10 cm, which of the following is true?
  • A. It is a right triangle.
  • B. It is an isosceles triangle.
  • C. It is an equilateral triangle.
  • D. It is a scalene triangle.
Q. In triangle XYZ, if XY = 5 cm, YZ = 12 cm, and XZ = 13 cm, what type of triangle is it?
  • A. Acute
  • B. Obtuse
  • C. Right
  • D. Equilateral
Q. In triangle XYZ, if XY = 8 cm, YZ = 6 cm, and XZ = 10 cm, which of the following is true?
  • A. It is an equilateral triangle.
  • B. It is an isosceles triangle.
  • C. It is a scalene triangle.
  • D. It is a right triangle.
Q. In triangle XYZ, if XY = 8 cm, YZ = 6 cm, and XZ = 10 cm, which side is the longest?
  • A. XY
  • B. YZ
  • C. XZ
  • D. All sides are equal
Q. What is the area of a triangle with a base of 10 cm and a height of 5 cm?
  • A. 25 cm²
  • B. 50 cm²
  • C. 15 cm²
  • D. 30 cm²
Q. Which of the following can be the lengths of the sides of a triangle?
  • A. 2, 3, 5
  • B. 4, 4, 8
  • C. 5, 5, 10
  • D. 6, 8, 10
Q. Which of the following is a property of an isosceles triangle?
  • A. All sides are equal.
  • B. Two sides are equal.
  • C. It has one right angle.
  • D. It has no equal sides.
Q. Which of the following is a property of similar triangles?
  • A. Their corresponding angles are equal.
  • B. Their corresponding sides are equal.
  • C. They have the same area.
  • D. They are congruent.
Q. Which of the following is NOT a property of an isosceles triangle?
  • A. It has two equal sides.
  • B. The angles opposite the equal sides are equal.
  • C. The area can be calculated using base and height.
  • D. All angles are equal.
Q. Which of the following is NOT a property of triangles?
  • A. The longest side is opposite the largest angle.
  • B. The shortest side is opposite the smallest angle.
  • C. The area can be calculated using base and height.
  • D. All angles must be acute.
Q. Which of the following is NOT a type of triangle based on side lengths?
  • A. Equilateral
  • B. Isosceles
  • C. Scalene
  • D. Quadrilateral
Q. Which of the following statements about an equilateral triangle is true?
  • A. All sides are equal
  • B. All angles are 60 degrees
  • C. It has one obtuse angle
  • D. It can be isosceles
Showing 1 to 30 of 34 (2 Pages)

Triangles MCQ & Objective Questions

Triangles are a fundamental topic in geometry that plays a crucial role in various examinations. Understanding triangles is essential for students as they frequently appear in both school and competitive exams. Practicing MCQs and objective questions on triangles helps students reinforce their knowledge, improve problem-solving skills, and ultimately score better in their exams. With a focus on important questions, this section is designed to enhance your exam preparation.

What You Will Practise Here

  • Types of triangles: Equilateral, Isosceles, and Scalene
  • Properties and theorems related to triangles
  • Triangle inequality theorem and its applications
  • Area and perimeter calculations of triangles
  • Congruence and similarity of triangles
  • Important formulas for angles and sides
  • Real-life applications of triangles in various fields

Exam Relevance

Triangles are a significant topic in various examinations, including CBSE, State Boards, NEET, and JEE. Questions related to triangles often test students on their understanding of properties, theorems, and calculations. Common question patterns include multiple-choice questions that require students to identify types of triangles, apply the triangle inequality theorem, and solve problems involving area and perimeter. Mastering this topic can greatly enhance your performance in these competitive exams.

Common Mistakes Students Make

  • Confusing the properties of different types of triangles
  • Misapplying the triangle inequality theorem
  • Overlooking the importance of congruence and similarity
  • Errors in calculating area and perimeter due to incorrect formula usage
  • Neglecting to visualize triangles through diagrams, leading to misunderstandings

FAQs

Question: What are the different types of triangles?
Answer: The three main types of triangles are equilateral, isosceles, and scalene, categorized based on their sides and angles.

Question: How can I calculate the area of a triangle?
Answer: The area of a triangle can be calculated using the formula: Area = 1/2 × base × height.

Question: Why is the triangle inequality theorem important?
Answer: The triangle inequality theorem states that the sum of the lengths of any two sides must be greater than the length of the third side, which is crucial for determining the feasibility of triangle formation.

Now that you have a clear understanding of triangles, it’s time to put your knowledge to the test! Solve practice MCQs and important triangles questions to strengthen your grasp of the concepts and boost your confidence for the upcoming exams.

Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely
Home Practice Performance eBooks