Classifying Triangles

​Classifying Triangles by Sides

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Deven Reese ​

​Today's Objectives

Some text here about the topic of discussion

​How can you identify triangles based on their properties?

​Essential Question

I can identify triangles based on their properties!​

​Standard: 5G4

Draw

Draw the different types of triangles you think there are

​Classifying Triangles By Their Sides | Math with Mr. J - YouTube

​This video will give us a slight introduction to triangles

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​A little introdution

​Some text here about the topic of discussion.

​Equilateral Triangles

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​Isosceles Triangles

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​A triangle with two congruent angles

​Scalene Triangles

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​A triangle with no congruent sides

Multiple Choice

Which one of these pictures is an isosceles triangle?

Multiple Choice

Which one of these triangles is an isosceles triangle?

​Classifying Triangles by Angles

​Right Triangles

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• ​A triangle that has one right angle

• One angle must measure 90 degrees​

​Obtuse Triangles

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• ​A triangle that has one obtuse angle

• An obtuse angle is an angle that measures greater than 90 degrees​

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• A triangle that has 3 acute angles

• All 3 angles measure less than 90 degrees

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​Acute Triangles

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Draw

Draw a right triangle

Draw

Draw an obtuse triangle

Poll

How do you feel about classifying triangles?

• I got it !!

• I almost got it.

• I need a little help.