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Area of a triangle
2 pi* r
Circumference of a circle
It is a transformation that moves points the distance and in the same direction.
It is a transformation that flips a figure over a line of reflection.
It is a transformation that turns a figure about a fixed point.
an angle whose vertex is the center of the circle
Angles that have the same relative positions in geometric figures.
alternate interior angles
Angles that lie within a pair of parallel lines and on opposite sides of a transversal; congruent
in a plane, the set of all points equidistant from a given point
Each regular polygon has a center because it can be inscribed in a circle.
From center to a point on the circle.
is a segment whose endpoints lie on the circle
A straight line passing through the centre of a circle to touch both sides of the circumference.
A solid shape with one curved surface and two congruent circular bases.
A solid shape with a circular base and a curved surface that come to a point (vertex).
A solid shape that is perfectly round like a ball. No faces, edges, or vertices.