Unit 3 Geometry Vocabulary

Enidia XhokaxhiuClass 5

An acute angle is an angle less than 90 degrees.https://lh3.googleusercontent.com/-JLQ_Ma-m7CQ/TXY_zjWuCOI/AAAAAAAALRk/OTB2N-zc_HA/s1600/24qlny0.jpg

Area is how much space an object takes up.

http://www.pearwoodcarpetcleaning.com/arearugcleaning.php

A cube is a 3D shape. It has 6 sides and all of them are squares.

http://www.plattcolleges.edu/sites/default/files/blogger_importer/s1600/a97599_FRUIT.jpg

A cylinder is a 3D shape. It has two circler bases.

http://dc-algebra.wikidot.com/cylinder

An equilateral triangle is a perfect triangle that has 3 equal sides and angles. For example, a triangle has 3 sides that measure 5 in. It has 3 angles that all measure 60 degrees. That is an equilateral triangle.

http://almostunschoolers.blogspot.com/2011/01/fun-with-fractal-geometry.html

A geometric solid is a 3D shape that has a height, length, and width like the pictures to the left.

https://www.pinterest.com/pin/111041947034111766/

A hexagon is a polygon that has 6 sides. ‘Hexa’ means 6.

http://www.calvin.edu/~venema/courses/m100/F10/hmwk.html

An isosceles triangle is a triangle that had 2 sides and angles that are equal while the other sides and angle isn’t.

http://ed101.bu.edu/StudentDoc/Archives/fall03/bennettd/Images/PizzaAcuteAngle.jpg

An object has a line of symmetry when it can be divided by one or more lines and both sides look the exact same.

http://greatmathsgames.com/Symmetry/index_files/symmetry.gif

An obtuse angle is an angle more than 90 degrees but less than 180 degrees. A 180 degrees angle is a line.

http://ed101.bu.edu/StudentDoc/Archives/fall03/bennettd/Images/ObtuseFan.jpg

An octagon is a 2D polygon that has 8 sides. ‘Octa’ means 8.

http://1.bp.blogspot.com/_F8J8ffOytKM/S8uz26vsyoI/AAAAAAAAA0I/y9BdjOGssJE/s1600/stop+sign.JPG

Parallel Lines are lines that never intersect, or meet.

http://4.bp.blogspot.com/_sryzRbw3UgI/TEc-5ieA45I/AAAAAAAAASY/xXbCyWzpceA/s1600/hartford_panorama_1.jpg

A parallelogram is a quadrilateral with opposite sides

parallel.

http://3.bp.blogspot.com/-F48MGK7M4dk/UZBDgc-7FMI/AAAAAAAAAZA/FvJHmnj8Ivw/s1600/SAM_0574.JPG

A pentagon is a polygon that has 5 sides. ‘Penta’ means 5.

http://api.ning.com/files/-DJGNFsw42yrvi73K5e0hRiol0-RX7gl*v80G6bZF0QA4ODj-3a-DqvAHdy7QNicRKkuEluW2R*Yf69mCXRzAcokAfBfsdNP/pentagon_hexagon_soccer_ball_resistance2010.jpg

Perimeter is the distance around a shape or object.

http://www.leslienettling.com/perimeter(color).jpg

Perpendicular is when 2 lines meet at a right angle. (90 degrees)

https://mathwithmrswendling.files.wordpress.com/2012/06/perpendicular.jpg

A polygon is a shape that has all 3 or more straight sides.

http://webmaths.files.wordpress.com/2010/12/octagon-billiard-clock-cherry.jpg

A pyramid is a 3D shape with a polygon for a base and triangles for faces and a point at the top. A pyramid can also be like the picture below.http://blogs.smithsonianmag.com/history/files/2011/08/Pyramid-exterior.jpg

A quadrilateral is a polygon that has 4 sides.http://www.mathpuzzle.com/NewKites3.gif

A rectangle is a 2D shape the has 2 sides short,

parallel, and 2 sides long, parallel. A rectangle also

has 4 right angles (90 degrees)

http://b1969d.medialib.g

logster.com/media/

1fefdfec1f0533884caf43fed5605e8a138af597120c10537f2afc7860b6035f/rectangle-real-

life-pic.jpg

A rectangular prism is a prism with 6 rectangular faces.

http://www.sciencebuddies.org/Files/2372/5/Math_img082.jpg

A reflection is a mirror image.

http://itshouldbeeasy.co.uk/wp-content/uploads/2012/09/reflection-10.jpg

A regular polygon is a polygon that has all sides and angles equal.

http://www.rogersconnection.com/triangles/images/RCPoly.jpg

A rhombus is a quadrilateral that has 2 sets of parallel lines. It also has 4 equal sides and opposite angles.

http://www.mathwarehouse.com/geometry/quadrilaterals/parallelograms/images/rhombus/baseball-diamond-as-rhombus.gif

A right angle is an angle that equals 90 degrees.

http://e08595.medialib.glogster.com/media/74/741620b784e52f8ce9064a10d1766782c555313b6145f0511253cb2cef2d0eb2/right-angle-jpg.jpg

A right triangle is a triangle that has 1 angle that equals to 90 degrees.

http://mathandreadinghelp.org/cimages/multimages/26/right-triangle-sandwich.jpg

A scalene triangle is a triangle in which there aren’t any angles that are equal.

http://4.bp.blogspot.com/-8T4a5cdx4l8/Tx1_4xvpxNI/AAAAAAAAEpk/O_YX8YyMq0Q/s400/Scalene%2BTriangle.jpg

A sphere is a 3D solid that is round like Earth.

http://geometry2010p6.wikispaces.com/file/view/sphere.jpg/133379165/276x274/sphere.jpg

A square is quadrilateral with 4 sides that are the same size. A square also has 4 right angles that equal 90 degrees and the opposite sides are parallel.

http://ediblecrafts.craftgossip.com/files/2011/07/rainbowcookiepops.cg_.jpg

A straight angle is a line that is exactly 180 degrees.

http://image.mathcaptain.com/cms/images/41/straight-angle-in-real-life.jpg

Symmetry is when ½ of an object is mirror image of the other ½.

http://randalrauser.com/wp-content/uploads/2011/01/butterfly.jpg

A 3 dimensional figure that has length, width, and height.

http://4.bp.blogspot.com/-SN2VprPLhdE/UZoxr6GDRrI/AAAAAAAAAGM/R3ePsB3Q66w/s1600/3D+Shapes+Poem.jpg

http://www.math-only-math.com/images/geometrical-shapes-for-kids.jpg

A trapezoid is a quadrilateral that has only 1 set of parallel lines.

http://2.bp.blogspot.com/_s8MG3S6jU8E/TNNXhNPzRiI/AAAAAAAAA24/yn3Lvp3D9Co/s1600/IMG_0038.JPG

A triangle is a polygon that has 3 sides and 3 angles.

http://www.moillusions.com/wp-content/uploads/1.bp.blogspot.com/_cxmptAPYR-s/RkzVlAgeHPI/AAAAAAAAA7k/B4BFLIXwBsQ/s400/dices.jpg

A two dimensional shape is a shape that has only length and width and can be drawn.

http://2.bp.blogspot.com/-sRV-lYWQ6Ms/UWc1_0Z6fXI/AAAAAAAAL60/grATSB4fs2w/s640/2013-04-11+13.42.48.jpg