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Geometry Review Katie Smith © 2012
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Quadrilaterals Katie Smith © 2012
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What does “Quad” mean? Katie Smith © 2012
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Quad means 4 Katie Smith © 2012
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How many sides does a quadrilateral have?
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A quadrilateral has 4 sides!
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These are all quadrilaterals!
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Kinds of quadrilaterals – see if you can name them!
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p _ _ _ _ _ _ _ _ _ _ Katie Smith © 2012
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parallelogram two sets of parallel sides
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r _ _ _ _ _ _ 3 in. 3 in. 3 in. 3 in. Katie Smith © 2012
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rhombus – all the sides are equal in length
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t _ _ _ _ _ _ _ _ Katie Smith © 2012
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trapezoid – only one pair of parallel sides
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s _ _ _ _ _ Katie Smith © 2012
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square – has right angles and ALL sides are the same length
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r _ _ _ _ _ _ _ _ Katie Smith © 2012
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rectangle Katie Smith © 2012
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Other important polygons you need to know
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Hint: think about pentominoes
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PENTAGON Five sides, five angles Katie Smith © 2012
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Eight sides, eight angles
o _ _ _ _ _ _ Hint: an octopus has 8 legs Eight sides, eight angles Katie Smith © 2012
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Eight sides, eight angles
OCTAGON Eight sides, eight angles Katie Smith © 2012
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Hint: Six has an X – so does the name of this shape.
Six sides, six angles Katie Smith © 2012
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HEXAGON Six sides, six angles Katie Smith © 2012
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Points, Lines, and Segments
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p _ _ _ _ A Katie Smith © 2012
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point A Katie Smith © 2012
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l _ _ _ B C Katie Smith © 2012
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line B C Katie Smith © 2012
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l _ _ _ s _ _ _ _ _ _ _ K S Katie Smith © 2012
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l _ _ _ s _ _ _ _ _ _ _ K S Katie Smith © 2012
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line segment K S Katie Smith © 2012
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r _ _ S L Katie Smith © 2012
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ray S L Katie Smith © 2012
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p _ _ _ _ _ _ _ lines Katie Smith © 2012
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parallel lines two lines that will never cross
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i _ _ _ _ _ _ _ _ _ _ _ lines Katie Smith © 2012
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intersecting lines lines that will cross if extended
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p _ _ _ _ _ _ _ _ _ _ _ _ lines Katie Smith © 2012
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perpendicular lines lines that cross to form right angles
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Angles Katie Smith © 2012
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o _ _ _ _ _ angle Katie Smith © 2012
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obtuse angle bigger than a right angle – more than 90 degrees
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a _ _ _ _ angles Katie Smith © 2012
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acute angles are smaller than a right angle – less than 90 degrees
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r _ _ _ _ angles Katie Smith © 2012
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right angles look like the letter L and are 90 degrees
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Perimeter Katie Smith © 2012
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Think of Jurassic Park: “Secure the Perimeter
Think of Jurassic Park: “Secure the Perimeter!” means get the fences ready! Katie Smith © 2012
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Perimeter = the measurement All the way around an object
Perimeter = the measurement All the way around an object *Add all the sides to find the perimeter! 6 in. 3 in. 4 in. Katie Smith © 2012
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What is the perimeter of the triangle?
6 in. 3 in. 4 in. Katie Smith © 2012
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P=13 inches! 6 in. 3 in. 4 in. Katie Smith © 2012
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Area Katie Smith © 2012
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Area is the measurement inside of an object.
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Find the area by multiplying the sides
Find the area by multiplying the sides. length x width = l x w What is the area of this rectangle? 7 in. 4 in. Katie Smith © 2012
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Find the area by multiplying the sides
Find the area by multiplying the sides. length x width = l x w What is the area of this rectangle? 7 in. A=28 square inches 7×4=28 4 in. Katie Smith © 2012
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What is the area of this square?
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What is the area of this square?
Area=25 square feet 5×5=25 5 ft. Katie Smith © 2012
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What is the area of this rectangle?
7 in. 3 in. 3 in. 7 in. Katie Smith © 2012
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What is the area of this rectangle?
7 in. Area=21 square inches 7×3=21 3 in. 3 in. 7 in. Katie Smith © 2012
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Good job Mathematicians!!!
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Thank You! Thank you for downloading one of my digital products! I am always happy to continue updating my documents as I receive comments and/or questions. If you would like to contact me please me at and I will get back to you as soon as possible. I would love your feedback! Keep checking my TpT store for reader’s and writer’s workshop items, math units, pre-made centers, and other exciting classroom items! Katie Smith © 2012
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