Geometry & Measurement
Mathematics, Grade 3
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Solid Figures – objects that have length, width, and height. Lines & Line Segments Triangles & Polygons Angles Quadrilaterals rectangular prism cube line line segment right angle 90º right triangle (90º) square rectangle parallelogram rhombus trapezoid acute triangle ( < 90º) obtuse triangle (one angle > 90º) equilateral triangle (all sides equal) isosceles triangle (two sides equal) scalene triangle (no sides equal) hexagon (6 sides) acute angle < 90º obtuse angle > 90º Polygon parallel lines intersecting lines ray point pyramid cone cylinder sphere • Lines and line segments make up shapes and solid figures. • A triangle has three sides. • A polygon is any closed plane figure made up of three or more sides. • An angle is formed by two rays that share the same end point or vertex. corner or vertex edge vertex 3 cm 3 cm 5 cm 7 cm right angle ray ray face • The faces of these solid figures are polygons. • The perimeter is the distance around a figure. • Volume is the space inside a solid figure. Volume = 8 cubic units Perimeter: Volume: Area: Area = 4 + 4 + 4 = 12 squares Perimeter = 3 + 5 + 3 + 7 = 18 cm © C opyright NewPath Learning. All Rights Reserved. 93-4309 www.newpathlearning.com Geometry & Measurement
\|xiBAHBDy01647sz\ Solid Figures – objects that have length , width , and height . Lines & Line Segments Triangles & Polygons Angles Quadrilaterals rectangular prism cube pyramid cone cylinder sphere • Lines and line segments make up shapes and solid fi ur . • A has three sides. • A is any closed plane figure made up of three or more sides. • An angle is formed by two rays that share the same end point or vertex. 3 cm 3 cm 5 cm 7 cm • The faces of these solid figures are polygons . • The perimeter is the a figure. • Volume is the a solid figure. Volume = 8 cubic units Perimeter: Volume: Area: Area = = squares + + Perimeter = = 18cm + + + © C opyright NewPath Learning. All Rights Reserved. 93-4309 www.newpathlearning.com Geometry & Measurement Key Vocabulary Terms • angle • area • corner • edge • face • geometry • height • length • line • line segment • measurement • perimeter • polygon • quadrilaterals • solid figure • triangle • vertex • volume • width
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