Geometry time!

Let's learn!


Acute angles

Acute angles are less than 90 degrees. Here are some examples a door hinge,top of a Y,and scissors.

Right angles

Right angles are exactly 90 degrees.Some examples are a book,square,and a box.

Obtuse angles

Obtuse angles are more than 90 degrees but less than 180 degrees.Examples are open book and a open compter.

Straigth angles

Straigth angles are exactly 180 degrees.Here are some examples a wall,pencil,and the ground.


Acute triangle

Acute triangles have 3 acute angles each lower 90 degrees.

Right triangles

Right triangles have 1 right angle that is 90 degrees and 2 acute angles.

Obtuse triangle

Obtuse triangles as 1 obtuse angle and 2 acute angles.

Scalene triangle

Scalene triangles have no cogruent sides or angles.

Isosceles triangle

Isosceles triangles as 2 congruent sides and angles.

Equilateral triangle

Equilateral triangle's angles are each 60 degrees and all sides are the same length.

How to find missing angles for triangles!

Triangle's degrees is 180.First add the angles that you have. Next subtract the number you got from the angles you added to 180 degrees and that's your missing angle.



In parallelograms opposite sides are parallel and angles are congruent.


Rectangles have all 4 angles 90 degrees and opposite sides congruent.


A square as all 4 angles are 90 degrees and all sides are congruent.


The rhombus as opposite angles are the same and opposite sides are parallel and all the sides are the same length.


Trapezoids have exactly one pair of of parallel sides.

How to find missing angles in quadriaterals!

All quadriateral's angles make 360 degrees. First add up all the angles you have. Then subtract that number from 360 degrees and thats your missing angle.

Merry Christmas And A Happy New Year!!!