Classifying Angles
Angles that are less than 90 degrees
Acute
Triangles that have all sides equal
equilateral triangles
The little box in the corner of a triangle or any figure represents what?
A right angle
Evaluate: 5+7x2
19
Angles that are equal to 180 degrees
Straight angles
Triangles that have no equal sides
scalene triangles
What is the measure of each interior angle of an equilateral triangle?
60 degrees
Evaluate: 7x3-2+4=?
23
Angles that are equal to 90 degrees
Right angles
Triangles that have two equal sides
isosceles triangles
3
The sum of the angles of a rectangle?
What is 360 degrees?
Angles that are greater than 90 degrees but less than 180 degrees
Obtuse angles
Triangles that have three angles less than 90 degrees
acute triangles
Can a triangle have these angle measures?
30, 60, 90.
Yes they add up to 180.
75x92=?
6,900
The number of degrees total in a triangle
180 degrees
Triangles that have one angle greater than 90 degrees
obtuse triangles
Write down the 3 types of triangles by sides.
Scalene, Equilateral, Isosceles
16/18 or 8/9
What are the 3 types of angles?
Acute, Obtuse, and Right.
Name the type of triangle that has angle measurements of 100, 40, 40?
isosceles
What's the missing angle?
60, 37, ?
83
Which quadrant does (-1,-7) fall in?
4