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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.
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