Monday, January 30, 2012

Amazing Angles!

In geometry, we are learning about angles!

An angle is a  figure formed when two rays share the same endpoint.

Below is a special angle called a right angle
It is also called a 90˚ angle.
Any angle less than a right is called an acute angle. 

Any angle greater than a right is called an obtuse angle. 

Below is a quiz. Can you guess each kind of angle?

Angle Quiz! on PhotoPeach



Do you see any acute, right, or obtuse angles in your house?

Tell us about them!


  1. Dear Class,

    I found all types of angles in my house especially right angles. The refrigerator, oven, cabinet doors, and the TV are some of the things that have right angles. Acute angles were found on knives, scissors, glass vases, and the tea kettle spout. I also found obtuse angles on the door way, the window blinds moldings, and the dining room chairs.


  2. Dear Class,

    When I looked at home, I found all sorts of angles!
    I found a jade dragon, and its tail was an acute angle.
    Then, I found a sink border which has right angles. Next, I found a brick on my fireplace, and the bottom had a straight angle. I hope more people find angles and share them on the blog.


  3. Dear Mrs. Ranney and class,

    When I looked around my house, I saw many different angles. My printer had an obtuse angle. My camera, computer, Tv, night stands, and closet doors had right angles. I hope you share some of your angles with me, too.

    Looking forward to your angles,

  4. Dear Class,

    My microwave has right angles.

    I also have an acute angle in my house, which is one of my windows.

    The cabinet in my kitchen has an obtuse angle.

    I hoped you liked hearing about the angles in my house.


  5. Dear Class,

    When I looked at my computer, I saw a right angle. I also saw an obtuse angle on the back of my chair. Lastly, on our table our vase has an acute angle.

    Best wishes,


  6. Dear Class,

    On my refrigerator handle I found an acute angle. On my kitchen counter, I found an obtuse angle. Finally, I found a right angle on my bed.

    Best wishes,


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