# Unit 3 Geometry Vocabulary Jatin Ponnathota Class 3.

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Unit 3 Geometry Vocabulary Jatin Ponnathota Class 3

An acute angle is an angle that is less than 90 degrees. woodworking168.blogspot.com

www.brainpickings.org The area is how much space a surface takes up.

A cube is a 3-D shape, or figure that has 6 sides that are all squares. epicureandealmaker.blogspot. com

A cylinder is a 3 –D figure with 2 circle faces that are exactly the same, or congruent. It also has curved side and 2 curved edges. www.anchorhocking.com

An equilateral triangle is a triangle that has all 3 of it’s sides and angles equal. www.math.hope.edu

A geometric solid is a 3- D solid with volume, or length, height, and width. www.8planets.co.uk

hello A hexagon is a shape with 6 sides and angles. beccatarnas.wordpress.com

An isosceles triangle is a triangle with 2 of it’s sides and angles equal www.oobject.com

www.dreamstime.com An object can have a line of symmetry if it can be cut in half and look exactly the same on either side at least once.

An obtuse angle is an angle that has a measure that’s bigger than 90 degrees and less than 180 degrees. alphabetgeometry.misterteacher.com

An octagon is a shape, or polygon that has 8 sides. www.ecovelo.info

sfcitizen.com Parallel lines are lines that can go in any direction and never intersect and are the same distance apart.

A parallelogram is a 4 sided polygon that has opposite sides that are parallel and equal. www.glogster.com

http://cnc.wikia.com/ wiki/Pentagon_(Tiber ium) A pentagon is a polygon with 5 sides.

The perimeter is the distance around something. jpkc.gdut.edu.cn

Perpendicular lines are lines that cross and make a right angle. worldclimateissues.wordpress.com

A polygon is a many sided figure that does not have any curves. It is closed, and does not have multiple interiors. paulscottinfo.ipage.com

A pyramid is a 3 – D shape with a polygon for a base and triangle faces that come to a point. en.wikipedia.org

A quadrilateral is a polygon with 4 sides. blog.lib.umn.edu A trapezoid is a 4 sided shape with 1 pair of parallel sides.

A rectangle is a 4 sided shape with 4 right angles and 2 pairs of opposite equal sides. games.ianterrell.com

A rectangular prism is a polyhedron with 6 faces that are rectangles. mperniko.weebly.com

A reflection is a mirror image of something. hqwallbase.com

A regular polygon is a polygon with all of it’s sides and angles equal. bioblog.biotunes.org

joannemattera.blogspot.com A rhombus is a parallelogram with 4 equal sides and equal opposite angles.

A right angle is an angle that measures 90 degrees. www.glogster.com A right triangle is a triangle with a right angle.

A scalene triangle is a triangle with all of the sides not equal in length. sugargar.wix.com

A sphere is a 3-D figure that is perfectly round. www.clker.com

A square is a 4 sided shape with all the sides equal in length and 4 right angles. intermath.coe.uga.edu

ed101.bu.edu A straight angle is 2 lines going in opposite directions and is an angle that measures 180 degrees.

Symmetry is when an object can be cut in half and will look the same on both sides. gwydir.demon.co.uk

Three Dimensional, or 3-D, means any object with width, length, and height. www.123rf.com

rayhoughtonphotography.wordpress.com A triangle is a polygon with 3 sides and 3 angles.

helpyourselftosolvemath.jimdo.com Two Dimensional, or 2-D, means any object with length and width.

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