S: A New School Year
FC: Lyle Lacanlale Salmaan Akhtar
1: Geometry 400 period 1 Ms. Rojszyk
2: Perpendicular lines:(1) Two lines that intersect at one point and form right angles
3: Plane:(2) 2-dimensional surface that extends in all direction endlessly | Point:(3) a specific location on a Plane
4: Segment:(4) part of a line that has a starting point and an endpoint.
5: Skew lines:(6) two lines that are parallel and on separate planes | Parallel lines:(5) lines on the same plane that do not intersect
6: Triangles (7) | a three-sided figure | Right Triangle:(7a) a triangle that contains a right angle | Isosceles Triangle:(7b) a triangle that has two congruent sides | Equilateral Triangle:(7c) a triangle with all 3 sides congruent
7: Obtuse Triangle:(7e) a triangle that contains an obtuse angle | Acute Triangle:(7d) a triangle that contains at least two acute angles
8: Parallelograms | Parallelogram:(8) figure in which opposite sides are congruent and parallel | Square: (10) rectangle where all 4 sides are parallel and congruent | Rectangle:(9) parallelogram with all 4 angles measure 90 degrees
9: Kite:(11) parallelogram where adjacent sides are congruent | Trapezoid:(12) four-sided figure when only two sides are parallel
10: Similar figures:(13) Figures where measures of corresponding sides are equal and corresponding angles are congruent | Angle of Depression:(14) angle between a downward line of sight and the horizontal | Angle of Elevation:(15) angle between an upward line of sight and the horizontal
11: Segment of a Circle:(19) a region bounded by two radii and an arc of a circle | Sector of a Circle:(18) a region bounded by two radii and an arc of a circle
12: Concentric Circles:(17) Circles that share a center point but have different radii
13: Hexagon:(21) 6 sided polygon with each angle measuring 120 degrees when regular. | Pentagon:(20) A closed polygon with 5 sides and each angle 105 degrees when regular.
14: Octagon: (22) 8 sided Polygon with each angle measuring 135 degrees when regular.
15: Hemisphere:(29) When a sphere is split into 2 congruent parts by a plane cutting through its center. | Sphere:(27) Round 3 dimensional object that is symmetrical around its center, and all points on the surface are the same distance from the center point.
16: Prism:(23) a 3 dimensional figure that has 2 bases and rectangular faces. | Pyramid:(24) 3 Dimensional figure that contains only 1 base and the sides meet at 1 point
17: Cylinder:(25) Like a prism, with 2 parallel and congruent bases, but they are different because they are always circles. | Congruent Figures:(30) Figures that have the same size, shape, and equal angle/side measurements.
18: Translation Symmetry:(31) When a symmetrical object/figure moves/slides a distance in a given direction, but is still symmetrical to the original figure. | Translation Symmetry:(31) When a symmetrical object/figure moves/slides a distance in a given direction, but is still symmetrical to the original figure.
19: Reflection Symmetry:(32) When a figure is reflected and both are symmetrical.
20: Arc:(16) A closed segment of a circle, with a differentiable curve. It is a segment of the circumference. | Rotational Symmetry:(33) When a figure is rotated around its axis in any direction, they are still symmetrical.
21: Cone:(26) a 3 dimensional figure that is like a pyramid, but has 1 circular base. | Frustum:(28) Solid that is below the cross section of a figure.