Symmetry
What is a line of symmetry?
A line through a figure that makes two perfectly equal halves.
What is an angle that is under 90 degrees called?
An acute angle
What is a triangle with 1 right angle called?
A right triangle
What is the name for a precise location on a plane?
A point
What shape has an infinite (unlimited) number of lines of symmetry?
A circle
What is an angle that is above 90 degrees called?
An obtuse angle
What is a triangle with 3 acute angles called?
An acute triangle
What is the name for a straight path that extends forever in both directions?
A line.
Potential answers: A, M, T, U, V, W, or Y
What is an 180 degree angle called?
A straight angle.
What is a triangle with 3 equal sides called?
An equilateral triangle
What is the name for two lines that will never meet?
Parallel lines
Name a letter of the alphabet that has a horizontal line of symmetry.
Potential answers: B, C, D, E, or K.
What are complimentary angles?
Two angles that add up to form a 90 degree angle.
What is the name of a triangle with no equal sides or angles?
A scalene triangle.
What is the name for two lines that intersect at a 90 degree angle?
Perpendicular lines.
A regular hexagon has how many lines of symmetry?
Six lines of symmetry.
What are supplementary angles?
Two angles that add up to form a straight angle/180 degree angle.
Draw an obtuse, isosceles triangle
What is the name for a perfectly flat surface that extends forever in all directions?
A plane.