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Shapes and Angles - 1 Video Lecture | Crash Course for Class 5

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FAQs on Shapes and Angles - 1 Video Lecture - Crash Course for Class 5

1. What are the basic shapes in geometry?
Ans. The basic shapes in geometry are triangles, rectangles, squares, circles, and polygons. These shapes have specific properties and characteristics that distinguish them from one another.
2. What is an angle?
Ans. An angle is the measure of the amount of rotation between two lines or line segments that meet at a common point. It is usually measured in degrees and can range from 0 degrees (no rotation) to 360 degrees (full rotation).
3. How many degrees are there in a right angle?
Ans. A right angle measures 90 degrees. It is formed when two lines or line segments are perpendicular to each other, creating a 90-degree angle at the intersection.
4. What is the sum of the interior angles of a triangle?
Ans. The sum of the interior angles of a triangle is always 180 degrees. This property holds true for all types of triangles, whether they are equilateral, isosceles, or scalene.
5. What is the difference between a convex and a concave polygon?
Ans. A convex polygon is a polygon whose interior angles are all less than 180 degrees. It does not have any "dips" or "indentations" in its shape. On the other hand, a concave polygon has at least one interior angle greater than 180 degrees, creating a "dip" or "indentation" in its shape.
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