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45 Cards in this Set
- Front
- Back
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a closed plane figure with at least 3 sides
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polygon
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polygon with 3 sides
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triangle
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three acute angle
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acute triangle
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one right angle
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Right triangle
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one obtuse angle
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obtuse triangle
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three congruent sides
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Equilateral Triangle
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at least 2 congruent sides
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Isosceles
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no congruent sides
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Scalene
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Classify _____ first when classifying triangles.
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sides
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four sides
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Quadrilateral
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exactly one pair of parallel sides
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Trapezoid
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both pairs of opposite sides parallel
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Parallelogram
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four congruent sides
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Rhombus
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four 90* angles
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Rectangle
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four 90* angles and four congruent sides
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Square
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Parallelograms include __________, _________, and _______.
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rectangles
rhombuses squares |
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Polygons are named using their vertices. Start at one vertex and list them in ___________ order.
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consecutive
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all sides congruent and all angles congruent
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regular polygon
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A few examples of regular polygons are _________, _______, _________, and ________.
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triangles
squares pentagons hexagons |
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_________ _______ have the same size and shape.
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Congruent
figures |
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________ ______ share a vertex and side but no points in their interiors.
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Adjacent
Angles |
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________ ______ are formed by 2 intersecting lines and are opposite each other. They have the same measure.
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Vertical Angles
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Angles that have the same measure are _________ ______.
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Congruent
angles |
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If the sum of two angles is 180*, the angles are _____________.
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supplementary
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If the sum of the measure of two angles is 90*, the angles are ____________.
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complementary.
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A line that intersects 2 other lines in different points is a __________.
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transversal
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_________ _______ lie on the same side of the transversal and in corresponding positions.
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Corresponding Angles
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___________ ____________ _____ are in the interior of a pair of lines and on opposite sides of the transversal.
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Alternate Interior Angles
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__________ _____, segments, or rays intersect to form right angles.
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Perpendicular
lines |
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A ________ __________ is a line, segment, or ray that divides a segment into two congruent sides.
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segment bisector
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A _________ __________ is a line, segment, or ray that is perpendicular to the segment it bisects.
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perpendicular bisector
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An _____ ________ is a ray that divides an angle into two congruent angles.
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angle bisector
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Area if a Circle.
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pi r squared
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Circumference of a circle
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2 pi r
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Area of a rectangle
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length x width
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Area of a trapezoid
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1/2 height (base1 + base2)
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Area of a triangle
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1/2 base x height
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Volume of a cylindar
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pi x R squared x height
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Surface Area of a cylindar
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2 R x r squared + 2 r x r x height
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Area of a parallelogram
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base x height
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Area of a rectangular prism
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length x width x height
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Surface Area of a rectangular Prism
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2 (length x width + length x height + width x height)
or 2 x lw + 2 x lh + 2 x wh |
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Volume of a triangular prism
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Base = 1/2 triangle base x height x height
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The ____ of a figure is the number of square units it encloses.
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Area
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KHDBDCM
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King Henry Died By Drinking Chocolate Milk
Kilo Hecto Deca Base Deci Centi Milli |
