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01 -Types of Triangles - Class 10 - Maths Video Lecture

FAQs on 01 -Types of Triangles - Class 10 - Maths Video Lecture

1. What are the different types of triangles?

Ans. There are three main types of triangles based on their angles - acute triangle, right triangle, and obtuse triangle. An acute triangle has all angles less than 90 degrees, a right triangle has one angle equal to 90 degrees, and an obtuse triangle has one angle greater than 90 degrees.

2. How can we classify triangles based on their sides?

Ans. Triangles can be classified based on their sides into three categories - equilateral triangle, isosceles triangle, and scalene triangle. An equilateral triangle has all sides equal in length, an isosceles triangle has two sides equal in length, and a scalene triangle has all sides of different lengths.

3. Can a triangle have more than one right angle?

Ans. No, a triangle cannot have more than one right angle. In a right triangle, one angle is always equal to 90 degrees, and the sum of all angles in a triangle is always 180 degrees. Therefore, if one angle is already 90 degrees, the sum of the other two angles can only be 90 degrees, which is not possible.

4. What is the sum of angles in a triangle?

Ans. The sum of angles in a triangle is always 180 degrees. This is known as the angle sum property of triangles. It means that the three angles of any triangle, regardless of their sizes or types, will always add up to 180 degrees.

5. How can we determine if a triangle is right-angled?

Ans. To determine if a triangle is right-angled, we need to check if one of its angles is equal to 90 degrees. This can be done by measuring the angles using a protractor or by comparing the given angle measurements with 90 degrees. If one angle is equal to 90 degrees, the triangle is a right triangle.

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