How can you classify these different triangles?. In this lesson you will learn how to classify...
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Transcript of How can you classify these different triangles?. In this lesson you will learn how to classify...
How can you classify these different triangles?
In this lesson you will learn how to classify triangles by observing
their angles.
Let’s Review
An angle is a figure made from two rays that have the same endpoint.
Angle
Let’s Review
Angles are given special names depending on their size.
Right Obtuse Acute Straight
Let’s Review
A triangle is a polygon with three sides and three angles.
Core Lesson
We can classify and sort triangles by the types of angles that make them up.
Acute TrianglesRight Triangles Obtuse Triangles
G
Core Lesson
Right triangles are triangles with one right angle and two acute angles.
Core Lesson
Acute triangles are triangles with all acute angles.
Core Lesson
Obtuse triangles are triangles with one obtuse angle and two acute angles.
Core Lesson
Sorting by angle types.
Right Triangles Acute Triangles Obtuse Triangles
Core Lesson
What type of triangle is formed on the inside of these stairs?
Right Triangle
Core Lesson
What type of triangle is this slice of pizza ?
Acute Triangle
Core Lesson
What type of triangle is the roof of this house?
Obtuse Triangle
Core Lesson
Acute Triangle Obtuse Triangle Right Triangle
How can you classify these different triangles?
In this lesson you have learned how to classify triangles by observing
their angles.