Class 5 Exam  >  Mathematics for Class 5: NCERT  >  Flashcards: Basic Terms Shapes and Angles
Flashcards: Basic Terms Shapes and Angles
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FAQs on Flashcards: Basic Terms Shapes and Angles Video Lecture - Mathematics for Class 5: NCERT

1. What are the basic terms related to shapes?
Ans. Some basic terms related to shapes include sides, vertices, and angles. Sides are the straight lines that form the shape, vertices are the points where the sides meet, and angles are the spaces between two intersecting lines.
2. How are shapes classified based on their number of sides?
Ans. Shapes can be classified as polygons, which have straight sides, or circles, which have a curved edge. Polygons can further be categorized based on the number of sides, such as triangles (3 sides), quadrilaterals (4 sides), pentagons (5 sides), and so on.
3. What is the difference between acute, obtuse, and right angles?
Ans. An acute angle is less than 90 degrees, an obtuse angle is more than 90 degrees but less than 180 degrees, and a right angle is exactly 90 degrees. These angles play a crucial role in geometry and help determine the shape of various figures.
4. How can I calculate the total number of angles in a polygon?
Ans. The total number of angles in a polygon can be calculated using the formula (n-2) * 180 degrees, where n represents the number of sides in the polygon. For example, a pentagon (5 sides) would have a total of (5-2) * 180 = 540 degrees.
5. Can shapes have both interior and exterior angles?
Ans. Yes, shapes can have both interior and exterior angles. Interior angles are the angles inside the shape, while exterior angles are the angles outside the shape but adjacent to its sides. The sum of an interior angle and its corresponding exterior angle is always 180 degrees.
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