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Basic Geometry Video Lecture | Crash Course for SSC CGL (English)
FAQs on Basic Geometry Video Lecture - Crash Course for SSC CGL (English)
| 1. What are the basic concepts of geometry? |  |
Ans. The basic concepts of geometry include points, lines, line segments, rays, and angles. Points are the most basic unit in geometry and do not have any size or dimension. Lines are straight, infinitely long, and extend in both directions. Line segments have a definite length and two endpoints. Rays have one endpoint and extend infinitely in one direction. Angles are formed by two rays with a common endpoint called the vertex.
| 2. How do you classify triangles based on their sides? | |
Ans. Triangles can be classified based on the lengths of their sides. An equilateral triangle has all three sides of equal length. An isosceles triangle has two sides of equal length. A scalene triangle has all three sides of different lengths.
| 3. What is the Pythagorean theorem? | |
Ans. The Pythagorean theorem states that in a right-angled triangle, the square of the length of the hypotenuse (the side opposite to the right angle) is equal to the sum of the squares of the other two sides. It can be written as a^2 + b^2 = c^2, where c is the length of the hypotenuse, and a and b are the lengths of the other two sides.
| 4. How do you calculate the area of a circle? | |
Ans. The area of a circle can be calculated using the formula A = πr^2, where A is the area and r is the radius of the circle. The radius is the distance from the center of the circle to any point on its circumference, and π is a mathematical constant approximately equal to 3.14159.
| 5. What is the difference between perimeter and area? | |
Ans. Perimeter is the distance around the outer boundary of a two-dimensional shape. It can be calculated by adding up the lengths of all the sides of the shape. Area, on the other hand, is the measure of the space enclosed within a two-dimensional shape. It is calculated by multiplying the length of a shape by its width or by using specific formulas for different shapes.
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Nov 20, 2024 Last updated |
Video Description: Basic Geometry for SSC CGL 2024 is part of Crash Course for SSC CGL (English) preparation.
The notes and questions for Basic Geometry have been prepared according to the SSC CGL exam syllabus.
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