Identifying Angles
an angle that measures 90˚
Right Angle
The measure of a complete circle
360 degrees
this has three interior angles adding up to 180˚
a triangle
The measure of an arc is 1/2 the measure of its central angle.
False. (It is equal to the central angle)
What is the corner point on a shape called?
vertex
"Verticies" is plural for this term.
Vertex
What is an angle that measures less than 90˚?
acute angle
What is an acute triangle?
a triangle that's interior angles are all less that 90˚
Two full spins is equal to 720 degrees
True
What is a six sided shape called?
Hexagon
An angle that is greater than 90˚
Obtuse angle
The measure of a straight angle is
180 degrees
An Equilateral Triangle is defined by what?
a triangle that's interior angles are all the same (equal)
There is no such thing as a 3D square
True. If it's 3D is is called a cube
What is a shape with four sides, four vertices. The sum of its interior angles is 360˚?
quadrilateral
An instrument used in measuring or drawing angles
Protractor
T/F: The angles of a triangle always add up to 360 degrees
False
Volume is always measured in units2
False, volume is measured in units3
two lines that intersect at a 90˚ are called
Perpendicular?
What is the vertex of an angle?
The point where the two sides of the angle meet or intersect
The Pythagorean Theorem is only true on what kind of triangle?
A right triangle
If you have two shapes that are the same shape, but different sizes, they are congruent.
False, they are similar.
What is the sum of the interior angles of a triangle?
180 degrees