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33 Cards in this Set
- Front
- Back
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By Definition, similar polygons have:
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proportional corresponding sides
congruent corresponding angles |
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Area and surface area are measured in ... units
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square
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A solid formed by polygons that enclose a single region of spaces is called a ...
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polyhedron
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The flat polygonal surfaces of the figures defined in a polyhedron are called its ...
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faces
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A segment where two faces intersect is called an ...
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edge
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A prism is a polyhedron that has two ... , parallel faces called ... and a set of congruent, ... edges that connect corresponding vertices of the two parallel faces
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congruent, bases, parallel
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Because the edges and faces that connect the bases of a prism can be considered to be " on the sides" of the solid, we use the adjective ... to describe where they are.
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lateral
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A prism with lateral faces that are rectangles is called a ...
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right prism
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A prism that is not a right prism is an ... prism
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oblique
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Prisms are classified by the shapes of their ...
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bases
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A point of intersection of three or more edges of a polyhedron is called a ... of the polyhedron
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vertex
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A pyramid has only one face called a ...
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base
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Its ... faces are not parallel but meet at a single point called the ... of the pyramid
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lateral, vertex
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The lateral faces of a triangle are always ...
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triangle
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Each pyramid is described by the shape of its ...
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base
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A line segment drawn in a regular polygon from the center of the polygon to the midpoint of a side is called an ... of the polygon.
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apothem
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The apothem is really the radius of the circle that can be ...
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enscribed
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The radius of the circumscribed circle of the polygon is called the ... of the polygon.
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radius
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The diagonals of a rhombus are perpendicular bisectors of each other. S, A, N?
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Always
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Similar triangles are congruent. S, A, N?
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Sometimes
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Two 30-60-90 triangles are similar. S, A, N?
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Always
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A 7-24-25 and a 15-20-25 right triangle are similar. S, A, N?
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Never
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A 15-20-25 and a 6-8-10 right triangle similar. S, A, N?
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Always
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Triangles can be proven similar by:
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AA, SSS~, SAS~
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Sine, Cosine, and Tangent are ...
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Trigonometric Ratios
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By Definition a midsegment of a triangle is ...
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a segment with endpoints at the midpoints of any two sides of the triangle.
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A proportion is generally expressed as the ... of ...
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equation of ratios
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Three special Pythangorean Triples by lengths of sides that are not multiples of each other are:
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3, 4, 5
5, 12, 13 7, 24, 25 |
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A postulate is a statement that we ... wile a theorem is a statement we ...
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assume, prove
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The Means-Extremes Product Theorem is the justification for the operation of ... ... when we are solving a proportion.
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cross multiplication
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What is a simile for mean proportionals?
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Geometric means
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Every point on the perpendicular bisector of a segment is ...
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equidistant from the endpoints of the segment
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By definition an altitude of a triangle is a ...
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segment from one vertex of the triangle perpendicular to the opposite side. (extended if necessary)
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