Angles
The measure of a right angle
what is 90 degrees
What is an equilateral triangle
A triangle with all angles smaller that 90 degrees
What is an acute triangle
Has no beginning and no end, can go on forever
What is a line
Lines that never cross or touch
What are parallel lines
The measure of a straight angle
What is 180b degrees
Has no equal sides
What is a scalene triangle
A triangle with at least one angle that measures more than 90 degrees
What is an obtuse triangle
Has a beginning point but can go on forever in one direction
What is a ray
Lines that cross or meet at a 90 degree angle
What are perpendicular lines
The measure of a circle
What is 360 degrees
Has 2 equal sides
What is an isosceles triangle
A right triangle must have what?
A right angle
Any given spot on a line or ray
What is a point
Lines that meet but do not meet at a 90 degree angle are perpendicular....true or false
False
Measures less than 90 degrees
What is an acute angle
The measurement of all the angles in a triangle
What is 180 degrees
The other angles in a right triangle must be
Acute
The point where two rays meet to form an angle
What is the vertez
A square has how many sets of parallel lines
2
Measures more than 90 degrees
What is an obtuse angle
A triangle with at least one right angle
What is a right triangle
A right triangle can not have this kind of angle
What is obtuse
If an angle is named ABC, what letter is the vertex
What is B
Triangles can have parallel lines, true or false
False