"Space and Graphics" general review PPT courseware

Description

"Space and Graphics" general review PPT courseware

What are the characteristics of straight lines, rays, and line segments?

A straight line has no endpoints and can be extended indefinitely on both sides

The ray has an endpoint, and the side without an endpoint can be extended infinitely.

A line segment has two endpoints and cannot be extended, but its length can be measured

judge right or not

1. Two parallel straight lines in the same plane never intersect. ( )

2. A straight angle is a straight line. ( )

3. Two points determine a straight line. ( )

4. The shortest line segment between two points. ( )

learning target

Deepen the understanding of the basic characteristics of plane figures such as rectangles, squares, parallelograms, trapezoids, triangles and circles, further understand the relationship between these plane figures, and improve the knowledge structure.

In a triangle, how many right angles, how many obtuse angles, and how many acute angles are there at most?

In a triangle, there can be at most 1 right angle, 1 obtuse angle and 3 acute angles?

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Update Time: 2024-09-01

This template belongs to Mathematics courseware Jiangsu Education Edition Sixth Grade Mathematics Volume 2 industry PPT template

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