geometry vocab stephanie jimenez. angle the union of two rays having a common endpoint, the rays are...
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Angle
• The union of two rays having a common endpoint, the rays are the sides of the angle and the common endpoint is the vertex
Scalene Triangle 25.08.2009• Triangle having no sides of the same length• They are three kinds of triangles: isosceles,
scalene and…….. equal triangle.
Concentric Circles 26.08.2009• Circles having the same center but with
different radii• Many concentric circles have a different radii.
Postulate 27.08.2009
• A statement accepted as true without having to be proven to be true
• He postulated that the circle was round.
Hypotenuse 31.08.09
• The side opposite the right angle in a right triangle: the longest side of a right triangle
Circle 3.09.09
• The set of all points in a plane that are equidistant from a given point known as the center of the circle
• (x-h)2 + (y-k)2 =r2
Polygon 14.09.09
• A plane figure bounded by a number of line segments; the minimum number of sides is 3
Adjacent Angles 17.09.09
• Two angles having a common side and vertex but do not overlap; no common interior points
Hemisphere 21.09.09
• the surface bounded by half of a sphere and a plane through the center of the sphere
Prism 05.10.09
• a polyhedron with two congruent faces, called bases, that lie in parallel planes; the other faces are called lateral faces
Slant Height 08.10.09
• the height of a lateral face of a pyramid• the mouse ran up the slant height of the grain
pile
Inscribed Angle 13.10.09
• an angle of a circle having its vertex on the circle and the sides of the angle are chords of the circle
Isosceles Triangle 14.10.09
• a triangle with at least two congruent sides; equilateral triangles are isosceles
Logic 19.10.09
• the analysis of the patterns of reasoning by which conclusions are validly derived from sets of premises
Angle of depression 21.10.09
• an angle formed by a horizontal line and the line of sight to an object below the level of the horizontal
Rectangle 10.23.09
• parallelogram with 4 right angles
• We found the area of the rectangle in class.
Translation 28.10.09
• a transformation that moves points the same distance and in the same direction; a slide
Arc 5.11.09
• A figure consisting of two points on a circle and all points on the circle needed to connect them to a single part
• A part of a circle
Apothem 6.11.09
• A segment joining the center of a regular polygon to the midpoint of one of the polygon’s sides
Frustum 10.11.09
• The part of a solid cone or pyramid formed by cutting off the top by a plane parallel to the base
Corollary 13.11.09
• A statement that follows directly from another theorem and that can easily be proved from that theorem to be true