Geometry Unit 4 Lesson 1 Classify Triangles

Geometry Unit 4

Classifying Triangles

Lesson 1

Objective: I will be able to classify triangles by their sides and angles.

I will be able to find side lengths and angle measures using the angle and side relationships of triangles.

All with at least 76% accuracy.

Some text here about the topic of discussion

Match

Classify each triangle in the diagram below by its angles.

• $$\Delta ABE$$

• $$\Delta BDE$$

• $$\Delta CFE$$

equiangular

obtuse

acute

• equiangular

• obtuse

• acute

Match

Match the following

• $$\Delta JKM$$

• $$\Delta KLN$$

• $$\Delta JKN$$

SCALENE

ISOSCELES

EQUILATERAL

• SCALENE

• ISOSCELES

• EQUILATERAL

Dropdown

9. Name by angles: ​

Select answer

; Name by sides​

Select answer

​

10. Name by angles: ​

Select answer

; Name by sides ​

Select answer

11. Name by angles ​

Select answer

; Name by sides

Dropdown

12. angles ​

Select answer

; sides ​

Select answer

13. angles ​

Select answer

; sides ​​

Select answer

14. angles ​

Select answer

; sides

Drag and Drop

Angles: ​

Placeholder

sides: ​

Placeholder

Drag these tiles and drop them in the correct blank above

obtuse

isoceles

scalene

equiangular

equilateral

acute

right

Drag and Drop

Classify each triangle by its angles.

16. ​ ​

Placeholder

17. ​

Placeholder

18. ​

Placeholder

19. ​

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​

20. ​

Placeholder

​

Drag these tiles and drop them in the correct blank above

right

obtuse

equiangular

acute

Dropdown

Classify each triangle by its sides.

16. ​

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17. ​ ​

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18. ​

Select answer

19. ​

Select answer

20.

Select answer

Dropdown

RS =

Select answer

ST =​

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​

RT =​

Select answer

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MN ​

Select answer

NP ​

Select answer

MP ​

Select answer

Dropdown

DE ​

Select answer

EF ​

Select answer

DF ​

Select answer

Dropdown

WX ​

Select answer

XY ​

Select answer

WY ​

Select answer

Dropdown

MK = ​

Select answer

KL = ​

Select answer

ML = ​

Select answer

Dropdown

AB = ​

Select answer

BC = ​

Select answer

AC = ​

Select answer

Dropdown

GI = ​

Select answer

HI = ​

Select answer

GH = ​

Select answer