Angles and Types of Triangles
4th Grade Mathematics
Types of Angles
Right Angle
Right Angle
Real world example of a right angle:
Straight Angle
Straight Angle
Here is one example of a
straight angle:
Obtuse Angle
Obtuse Angle
Obtuse Angle
Acute Angle
An example of an acute angle
A fun video to help you learn even more.....
Types of Triangles
Introduction to Triangles:
Study Island link where we will watch the lesson video on triangles.
Equilateral Triangle
Equilateral Triangle
Isosceles Triangle
Isosceles Triangle
A real world example:
Scalene Triangle
Right Triangle
Right Triangle
One way that a right triangle
is used in the real world.
Lets see how much you know....
It is time for a quiz!
Time for you to show everyone how much you know!
Question #1
What type of angle is this?
a).
b).
c).
Acute
Obtuse
Right
Hooray! You Got It!
Question #2
Sorry Try Again
Go Back
Question #2
What type of triangle is this?
a).
b).
c).
Right Triangle
Isosceles Triangle
Scalene Triangle
Hooray! You Got It!
Question #3
Sorry Try Again
Go Back
Question #3
This is an equilateral triangle
a).
b).
True
False
Hooray! You Got It!
Resources
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Go Back
Resources
All images are from creative commons
Attribution given to:
Image 1: Carol VanHook
Image 2: Lone Primate
Image 2: Elle Brown
Image 4: Katsrcool
Image 5: Origamidon
Image 6: Kevin H.
Image 7: Paloetic
Image 8: Randy Son of Robert
Image 9: Dhammza
Image 10: Hamad AL-Mohanna
Image 11: D. Sharon Pruit