Study Guide for Geometry Test Test Date: ________________ Patterns A repeating pattern has a set number of objects or numbers that repeat the number, color, and shape ABCABCABC Growing patterns build on the beginning of the pattern, adding to the pattern each time it repeats ABC ABCD ABCDE ABCDEF ABCDEFG ABCDEFGH Plane Figures and solid shapes Face- the flat surface of an object. Objects can have no faces, one face, or many faces! Vertex (plural: vertices) the corner of an object- this is where 2 or more edges on a plane figure, or 3 or more edges on a solid figure, meet in a point. Edge: where the sides of two flat faces meet Plane figures and solid shapes Know these plane shapes, & how many sides and corners they have. Rectangle 4 sides 4 corners Square 4 sides 4 vertices Triangle 3 sides 3 corners Parallelogram 4 edges 4 vertices Pentagon 5 edges 5 vertices Circle 0 edges 0 vertices Know these solid shapes and how many faces, edges and vertices they have. Cylinder 2 faces 0 edges 0 vertices Cone 1 face 0 edges 0 vertices Cube 6 faces 12 edges 8 vertices Pyramid 5 faces 8 edges 5 vertices Rectangular Prism 6 faces 12 edges 8 vertices Sphere 0 faces 0 edges 0 vertices LINES Point: an exact place in space . Line: a set of points that create an endless line going in both directions. Line segment: a set of points on a line with two end points. . . Ray: a set of point on a line with one end point and one end going on endlessly in both directions. . Types of lines: Parallel - two lines that run beside each other but never cross intersecting: two lines that cross each other at one point perpendicular: two lines that cross each other on a right angle, creating a perfect square Angles An angle is made of two rays with the same end point. The end point is called the vertex. Angles also have letters used to label each end of the ray. The middle letter is the vertex. You can label the angle two ways. Angle ABC or angle CBA A B C Congruent Shapes Congruent Shapes have the same SIZE and same SHAPE Similar shapes are the same shape but have different sizes Symmetry Both sides of an object are equal in size, shape, and content. The object can be folded on the line of symmetry and both sides will be the same. line of symmetry Translations: You can have a flip, a slide or a turn. FLIP TURN SLIDE