Lines of symmetry
How many lines of symmetry does a square have?
4
If you have a 30-degree angle, what angle do you need to make 90 degrees?
60 degree angle
What type of angle is less than 90 degrees?
acute angle
What do you call a triangle with three equal sides?
An equilateral triangle
What is a line that has two endpoints?
line segment
What is a line of symmetry?
A line where an object can be split into two equal parts
If one angle is 70 degrees, what is the other angle to make 90 degrees?
20 degrees
What do you call an angle that is exactly 90 degrees?
right angle
What do you call a triangle with one angle greater than 90 degrees?
obtuse triangle
What are lines that never meet called?
parallel lines
How many lines of symmetry does the heart shape have?
1
If one angle measures 45 degrees, what is the other angle to make a straight line?
135 degrees
What do you call an angle that is more than 90 degrees but less than 180 degrees?
obtuse angle
How do you classify a triangle with two equal sides?
Isosocoles
What do you call two lines that intersect at a right angle?
perpendicular lines
How many lines of symmetry does a rectangle have?
2
What is the measurement of a straight line
180 degree
What is the point on an angle called where the two rays meet?
The Vertex
Name a triangle that has all angles less than 90 degrees.
acute triangle
What is a ray?
Has a beginning point but no end point
Does a circle have an endless amount of lines of symmetry?
2
What is an angle thats larger than 180 degrees but less than 360 called?
What is a triangle with one right angle and no equal sides called?
Right scalene triangle
What is the difference between intersecting lines and perpendicular lines?
Intersecting lines cross each other but perpendicular have to cross at a 90 degree angle.