Formulas & Angles
These two angles sum to 90°.
What are Complementary Angles
This ray divides an angle into two congruent angles.
What is Angle Bisector
Transformations
This point is the intersection of three or more lines.
What is Point of Concurrency
This triangle type has at least 2 congruent sides.
What is Isosceles
These two angles sum to 180°.
What are Supplementary Angles
The two congruent sides of an isosceles triangle have this body part name.
What are Legs
What is a tessellation?
an arrangement of shapes closely fitted together, especially of polygons in a repeated pattern without gaps or overlapping.
A triangle's perpendicular bisectors meet at this point.
What is Circumcenter
This triangle type has 3 congruent sides.
What is Equilateral
This formula has you averaging x's and y's.
What is Midpoint Formula
This segment, ray, line, or plane meets a segment at its midpoint, making a right angle.
What is Perpendicular Bisector
translate the point 6 units to the right and 3 units down.
(-3,3)
(3,0)
A triangle's angle bisectors meet at this point.
What is Incenter
An equilateral triangle can also be classified by its angles using this word.
What is Equiangular
The sum of the measures of a triangle's angles.
What is 180°
This segment's endpoints are a vertex of a triangle and the midpoint of the opposide side.
What is Median
reflect the point across the line y = 2
(1,5)
(1,-1)
This point is at the intersection of a triangle's altitudes.
What is Orthocenter
This triangle type has 3 different side lengths.
What is Scalene
This formula tells you, "square them both and find the sum".
What is Distance Formula
This segment is the result of making a line from the vertex that is perpendicular to the opposite side.
What is Altitude
rotate 180 degrees around the origin
(2,-2)
(-2,2)
A triangles's medians meet at this point. It is also a triangle's balancing point.
What is Centroid
These angles are congruent whenever two sides of a triangle are congruent.
What is Base Angles