"Classification of Triangles" Understanding Triangles and Quadrilaterals PPT Courseware 3 Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
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Authoritative PPT Summary
"Classification of Triangles" Understanding Triangles and Quadrilaterals PPT Courseware 3
teaching objectives
Know how triangles can be divided into categories according to their sides and angles.
Know the characteristics of each type of triangle.
Able to solve relevant practical problems.
Fill it out:
1. Triangles are classified according to angles and can be divided into ( ) triangle, ( ) triangle and ( ) triangle.
2. In a triangle, there are at least ( ) acute angles, at most ( ) acute angles, and at most ( ) right or obtuse angles.
3. The largest angle in a triangle is an acute angle. This triangle is a ( ) triangle.
4. The largest angle in a triangle is 120°. This triangle is a ( ) triangle.
Cut it
How should we cut the parallelogram below into two identical acute-angled triangles? How about cutting it into two identical obtuse triangles?
draw a picture
Can you draw a line segment in each of the triangles below to divide it into two right triangles?
Draw a line segment in the right triangle to divide it into two triangles. What kind of triangles did you divide into two? How else can we divide it?
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"Classification of Triangles" Triangle PPT Courseware 3:
"Classification of Triangles" Triangle PPT Courseware 3 According to the characteristics of the angles of triangles Acute triangle: A triangle in which all three angles are acute. Right triangle: A triangle with one right angle. Obtuse triangle: A triangle with one obtuse angle. ... .....
"Classification of Triangles" Triangle PPT Courseware 2:
"Classification of Triangles" Triangle PPT Courseware 2 Teaching Objectives In this lesson we will mainly learn the classification of triangles. Students must understand and master the categories of triangles, what characteristics each category of triangles has, and how they can solve relevant practical problems. question. Fill in the blanks ..
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"Classification of Triangles" Triangle Parallelogram and Trapezoid PPT Courseware 3 (1) A figure consisting of three line segments ( ) is called a triangle. (2) A triangle has three ( ) and ( ) angles. (3) The triangle in ( ) is called an acute triangle. (4) There is a corner...