Class 7 Exam > Class 7 Videos > Mathematics (Maths) Class 7 > Triangle and its Properties
Triangle and its Properties Video Lecture | Mathematics (Maths) Class 7
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FAQs on Triangle and its Properties Video Lecture - Mathematics (Maths) Class 7
| 1. What are the properties of a triangle? |  |
Ans. A triangle is a polygon with three sides and three angles. Its properties include:
- The sum of the interior angles of a triangle is always equal to 180 degrees.
- The sum of the lengths of any two sides of a triangle is always greater than the length of the third side (Triangle Inequality Theorem).
- The longest side of a triangle is opposite the largest angle, and the shortest side is opposite the smallest angle (Triangle Inequality Theorem).
- The sum of the lengths of any two sides of a triangle is always greater than the length of the third side (Triangle Inequality Theorem).
| 2. What are the different types of triangles based on their angles? | |
Ans. Triangles can be classified into three types based on their angles:
- Acute triangle: A triangle in which all three angles are less than 90 degrees.
- Obtuse triangle: A triangle in which one angle is greater than 90 degrees.
- Right triangle: A triangle in which one angle is exactly 90 degrees.
| 3. What are the different types of triangles based on their sides? | |
Ans. Triangles can be classified into three types based on their sides:
- Scalene triangle: A triangle in which all three sides have different lengths.
- Isosceles triangle: A triangle in which two sides have the same length.
- Equilateral triangle: A triangle in which all three sides have the same length.
| 4. How can you determine the area of a triangle? | |
Ans. The area of a triangle can be calculated using the formula:
Area = (base * height) / 2
where the base is the length of any side of the triangle, and the height is the perpendicular distance from the base to the opposite vertex.
| 5. How can you determine the perimeter of a triangle? | |
Ans. The perimeter of a triangle can be found by adding the lengths of all three sides of the triangle.
About this Video
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Oct 25, 2024 Last updated |
Video Description: Triangle and its Properties for Class 7 2024 is part of Mathematics (Maths) Class 7 preparation.
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