4th Grade Math
Geometry
Unit 6
Practice Problems!
Practice Problems!
Try a few before you take the chapter challenge! Refresh your memory
Try a few before you take the chapter challenge! Refresh your memory
An angle is 65°. Is this an acute, right, or obtuse angle?
An angle is 65°. Is this an acute, right, or obtuse angle?
This is an acute angle. Remember, an acute angle is lower than 90°.
Two lines meet at a 90° angle. Are these lines parallel, perpendicular, or intersecting?
Two lines meet at a 90° angle. Are these lines parallel, perpendicular, or intersecting?
Perpendicular. When two lines meet at a 90° angle, the lines are perpendicular.
A triangle has one obtuse angle. Is this an acute, right, or obtuse angle?
A triangle has one obtuse angle. Is this an acute, right, or obtuse angle?
This triangle is an obtuse angle because it has one obtuse angle.
Observation Station
Observation Station
Let's observe some more examples!
Let's observe some more examples!
What kind of angle is this? Why?
What kind of angle is this? Why?
This is an obtuse angle because it is higher than 90°.
What kind of angle is this? Why?
What kind of angle is this? Why?
This is a line segment because it has two endpoints.
Are these lines parallel, perpendicular, or intersecting?
Are these lines parallel, perpendicular, or intersecting?
These lines are intersecting because they meet at a point and do not create a 90° angle (those would be perpendicular lines!).
Chapter Challenge
Chapter Challenge
Up to the challenge to test your knowledge? Yeah you are!
Up to the challenge to test your knowledge? Yeah you are!
How did you do? Tell us in your ClassDojo!
How did you do? Tell us in your ClassDojo!
Click on the button to find your name and enter your points!
Feelings Forward
Feelings Forward
How did you feel about this unit? Tell us in the form below!
Play-palooza
Play-palooza
Ready to have fun with these practice games?
Ready to have fun with these practice games?