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Transcript
Geometry Review What is a six sided polygon called? Hexagon What is a polygon with all angles and sides congruent called? Regular polygon What is a quadrilateral with opposite sides parallel called? parallelogram A simple closed figure formed by three or more sides is called what? polygon What is the most common unit of measure for an angle? degree What do you call an angle whose measure is between ° 0° and 90°? Acute angle What do you call an angle whose measure is between 90° and 180°? Obtuse angle What is a straight angle? An angle that measures exactly 180° If the sum of two angles adds to 180°, then they are called what? Supplementary angles If the sum of two angles adds to 90°, then they are called what? Complementary angles What is the supplementary angle of an angle that measures 43°? 137° A triangle whose sides and angles are congruent is called what? An equilateral triangle A triangle that has 2 sides congruent is called what? Isosceles triangle If a triangle’s three sides are all different lengths, then it is called what? Scalene triangle What is an eight sided polygon called? Octagon What is a five sided polygon called? Pentagon What is an edge? The intersection of faces of a 3dimensional figure How many edges does a hexagonal pyramid have? 12 What are vertices? The point where the edges of a 3dimensional figure intersect How many vertices does a square pyramid have? 5 What is a face? The flat surfaces of a threedimensional figure How many faces does a pentagonal prism have? 7 Sketch the net of a square pyramid. What polygons make up the net of a cylinder? Two circles and one rectangle Why isn’t a circle a polygon? It does not have sides, and it has curved edges.