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Slide Notes

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Geometry Vocab. Unit 4

Published on Nov 24, 2015

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PRESENTATION OUTLINE

ACUTE ANGLE

  • Less than 90 degrees
Photo by huzzah16

OBTUSE ANGLE

  • Greater than 90 degrees but less than 180 degrees

RIGHT ANGLE

  • Exactly 90 degrees
Photo by kelly.sikkema

STRAIGHT ANGLE

  • Exactly 180 degrees

VERTICAL ANGLES

  • Angles across from each other

ADJACENT ANGLES

  • Angles right beside each other

COMPLEMETARY ANGLES

  • 2 angles added together to equal exactly 90degrees

SUPPLEMENTARY ANGLES

  • 2 angles that add up to exactly 180 degrees

CORRESPONDING ANGLES

  • Angles in the same position on parallel lines
  • In relation to a transversal

TRANSVERSAL

  • The 3rd line formed when 2 parallel lines are intersected

CIRCLE

  • The set of all points in a plane that are the same distance
  • From a given point called the center
Photo by tim caynes

SEMICIRCLE

  • Half of a circle
Photo by rodarmor

CIRCUMFERENCE

  • The distance AROUND a circle

AREA

  • The size of a surface

DIAMETER

  • The distance across a circle through its center

RADIUS

  • The distance from the center of a circle to
  • Any point on the circle

PI

  • The ratio of the circumference of a circle to its diameter
Photo by tj.blackwell

FORMULA

  • An equation that shows the relationship among
  • Certain quantities

PRISMS

  • A polyhedron with 2 parallel congruent faces called bases

PYRAMIDS

  • A polyhedron with 1 base that is a polygon and 3 or more
  • Triangular faces that meet at a common vertex
Photo by Exothermic

CONE

  • A 3D figure with 1 circular base connected by a
  • Curved surface to a single vertex
Photo by failing_angel

CYLINDER

  • A 3D figure with 2 parallel congruent circular
  • Bases connected by a curved surface

EDGE

  • The line segment where 2 faces of a
  • Polyhedron intersect
Photo by Tc Morgan

FACES

  • A flat surface of a polyhedron

BASE

  • 1 of the 2 parallel congruent faces of a prism

VERTEX

CROSS SECTION

SURFACE AREA

VOLUME