"Using Triangle Congruence to Measure Distance" Triangle PPT Download

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"Using Triangle Congruence to Measure Distance" Triangle PPT Download

Part One: Learning Objectives

1. Be able to use the congruence of triangles to solve practical problems and understand the connection between mathematics and real life.

2. Able to think and express in an organized manner in the process of solving problems.

Using triangle congruence to measure distance PPT, part 2: classic examples

[Example 1] As shown in the figure, Xiaoqiang uses the knowledge of congruent triangles to measure the distance M and N between the two ends of the pond. If △PQO≌△NMO, then the line segment that only needs to measure its length is ()

A.PO B.PQ

C.MO D.MQ

[Example 2] As shown in the figure, the shore of a lake is in the shape of an arc between A and B. The distance between A and B cannot be directly measured. You can use the knowledge or methods you have learned to design a measurement plan and find What is the distance between A and B?

Using triangle congruence to measure distance PPT, Part 3: Variation practice

1. As shown in the figure, connect the midpoints O of the two steel bars AA' and BB' together so that AA' and BB' can freely rotate around the point O to create a measurement workpiece. Then the The length is equal to the inner groove width AB, then the reason for determining △OAB≌△OA'B' is ()

A. Side by side B. Corner by corner

C. Corner edge D. Corner edge

2. As shown in the figure, to measure the distance between two opposite points A and B on the river bank, first start from point B in a 90° direction to AB, walk forward 50 m to set up a benchmark at point C, and then continue without changing the direction. Walk forward 50 m to D, turn 90° at D and walk along the DE direction for another 17 m to reach E. At this time, A, C, and E are on the same straight line. Find the distance between A and B. .

Using triangle congruence to measure distance PPT, Part 4: Consolidate training

3. To measure the outer diameter of the circular workpiece, the master worker designed a caliper as shown in the figure. Point O is the intersection point of the two handles of the caliper, and OA=OB=OC=OD. If the circular workpiece happens to pass through the caliper AB, then The outer diameter of this workpiece must be the length of CD, which is based on the judgment condition of congruent triangles ()

A.SSS B.SAS

C.ASA D.AAS

4. On March 3rd, fly a kite. The picture shows the kite made by Xiao Ming. According to DE=DF and EH=FH, without measuring, he knows that ∠DEH=∠DFH. Please use the knowledge you have learned to explain the reason.

5. During class, Xiao Ming was playing with the teacher’s isosceles triangle and accidentally fell it between two walls. As shown in the picture, please explain: △ADC≌△CEB.

Keywords: Free download of Beijing Normal University edition seventh-grade mathematics PPT courseware volume 2, using triangle congruence to measure distance PPT download, triangle PPT download, .PPT format;

For more information about the PPT courseware "Triangles Using Triangle Congruence to Measure Distance", please click on the Triangle PPT Using Triangle Congruence to Measure Distance PPT tag.

"Using Triangle Congruence to Measure Distances" Triangle PPT courseware download:

"Using Triangle Congruence to Measure Distances" Triangle PPT Courseware Download Part One Content: Learning Objectives 1. Be able to use the congruence of triangles to solve practical problems and understand the connection between mathematics and real life. 2. Be able to be organized in the process of solving problems Thoughts and expressions..

"Using Triangle Congruence to Measure Distance" Triangle PPT Teaching Courseware:

"Using Triangle Congruence to Measure Distances" Triangle PPT Teaching Courseware Part One Content: Learning Objectives 1. Review and summarize the judgment and properties of triangle congruence; 2. Be able to measure the distance between two points based on triangle congruence and solve practical problems in learning Key points and difficulties...

"Using Triangle Congruence to Measure Distance" Triangle PPT:

"Using Congruent Triangles to Measure Distances" Triangle PPT Part 1 Content: Think About It 1. What are congruent triangles? Two triangles that can completely overlap are called congruent triangles. 2. What methods have we learned to determine whether two triangles are congruent? side..

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Update Time: 2024-07-04

This template belongs to Mathematics courseware Beijing Normal University Edition Seventh Grade Mathematics Volume 2 industry PPT template

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