Angles class 5

types of angles and how to measure and draw angles

1. Mathematics class 5 Geometry

2. We would learn about Basic symbols in geometry How are angles formed? Types of angles Measuring and drawing angles using protractor

3. The branch of mathematics that is concerned with the properties and relationships of: point, lines, angles, curves, surfaces, and solids - The visual study of shapes, sizes, patterns, and position

4. — Has no beginning or end. — Continues indefinitely in both directions. — Can be illustrated by drawing arrows at each end.

5. — Has a beginning point and an end point. — Line segments on a shape are called sides. — Can be found in many shapes.

6. — Has a beginning point, but no end point.

7. — Lines in the same plane that do not intersect or cross each other.

8. — Two or more lines that meet at a point. — Perpendicular lines form a right or 90 degree angle .

9. — Made up of two rays with the same start point . — The start point is called the vertex . — The two rays are called the sides of the angle/ar ms of angles . ANGLES

10. — A Protractor. This Photo by Unknown Author is licensed under CC BY-SA This Photo by Unknown Author is licensed under CC BY-SA

11. — Zero Angles — Right Angles — Acute Angles — Obtuse Angles — Straight Angles — Supplementary Angles — Complimentary Angles

12. — Are Parallel and equal 180 degrees.

13. — Two rays that create a 90 degree angle.

14. — Two rays that have a smaller angle than a right angle. — Degrees <90

15. Angles larger than a right angle and smaller than 180 ( two right angles)but greater than (>90) Degrees

16. — Angles equal to two right angles.

17. Let us revise How to measure an angle How to measure an angle with a protractor? Place the midpoint of the protractor on the VERTEX of the angle. Line up one side of the angle with the zero line of the protractor (where you see the number 0). Read the degrees where the other side crosses the number scale. Take care to read from the right set of numbers. A protractor has two sets of numbers: one set goes from 0 to 180, the other set from 180 to 0. Which one you read depends on how you place the protractor: place it so that one side of the angle lines up with one of the zeros, and read that set of numbers. Asha measured an acute angle, and got 46°. The teacher pointed out that she had read the wrong set of numbers on the protractor. What is the correct angle measure for the angle she measured?