What are 26 geometrical facts and features from A to Z?

Answer 1

Arctan -- The inverse function of tangent.

Bisect -- Cut into two congruent halves.

Circle -- The locus of all points that are a fixed distance from a given point.

Diameter -- A line segment between two points on the circle or sphere which passes through the center.

Euclid -- often referred to as the "father of geometry."

Frustum -- A truncated cone or pyramid in which the plane cutting off the apex is parallel to the base.

Geometry -- If Euclid is the father, this is the child.

Hexagon -- A polygon with six sides.

Isosceles -- said of a triangle having two sides of equal length.

January, June or July -- For the purposes of this exercise, Euclid's birth month.

Justification -- What Euclid thought he had for making this stuff up in the first place.

Kite -- A quadrilateral with two pairs of adjacent sides that are congruent.

Line -- The geometric figure formed by connecting two points.

Mean -- Another word for average.

Number -- a value, expressed by a word, symbol, or figure, representing a particular quantity and used in making calculations.

Obtuse -- said of an angle that measures more than 90 degrees and less than 180.

Perimeter -- The distance around the outside of a plane figure.

Perpendicular -- A fun word to say.

Quadrilateral -- A polygon with four sides.

Rhombus -- A parallelogram with four congruent sides.

Second -- A unit of angle measure equal to one sixtieth of a minute.

Tetrahedron -- A polyhedron with four triangular faces, or a pyramid with a triangular base.

Undecagon -- A polygon with eleven sides.

Vertex -- A corner point of a geometric figure.

Washer -- The region between two concentric circles which have different radii.

Washington -- A place that Euclid never went to.

X-intercept -- A point at which a graph intersects the x-axis.

Y-intercept -- A point at which a graph intersects the y-axis.

Z-intercept -- A point at which a graph intersects the z-axis.

Zero -- The grade you will not get on this assignment.