Classifying Angles
Types of Triangles
Types of Triangles
Angle Measures
Angle Measures
100
Angles that are less than 90 degrees
Acute
100
Triangles that have all sides equal
equilateral triangles
100
13
100
The little box in the corner of a triangle or any figure represents what?
A right angle
100
If one angle of a right triangle is 25 degrees, what is the remaining angle measurement?
What is 65 degrees
200
Angles that are equal to 180 degrees
Straight angles
200
Triangles that have no equal sides
scalene triangles
200
An equilateral triangle is also a ____________ triangle
Isosceles Triangle
200
How many angles are in a triangle?
3
200
DAILY DOUBLE-WHAT WILL YOU BET?
What is the missing angle?
39+31= 70, 180-70= 110 degrees
300
Angles that are equal to 90 degrees
Right angles
300
Triangles that have two equal sides
isosceles triangles
300
What type of triangle is this?
Equilateral Triangle
300
Can a triangle have these angle measures?
30, 60, 90.
Yes they add up to 180.
300
What is the measurement of angle x?
61 + 29 = 90 (it's a right triangle), so R = 90 degrees
400
Angles that are greater than 90 degrees but less than 180 degrees
Obtuse angles
400
Triangles that have three angles less than 90 degrees
acute triangles
400
DAILY DOUBLE-WHAT WILL YOU BET?
What type of triangle is this?
Scalene
400
What is measurement of the indicated angle assuming the figure is a square?
a. 45 degrees
b. 90 degrees
c. 60 degrees
d. 30 degrees
b. 90 degrees
400
What is the missing angle if a triangle has the following angles: 35 degrees and 65 degrees.
80 degrees!
500
The number of degrees total in a triangle
180 degrees
500
Triangles that have one angle greater than 90 degrees
obtuse triangles
500
What type of triangle is this?
Isosceles
500
DAILY DOUBLE-WHAT WILL YOU BET?
What is the sum of all the angles in the rectangle above?
a. 180 degrees
b. 360 degrees
c. 90 degrees
d. 120 degrees
B. 360 degrees
500
The name given to two angles with a sum of 180 degrees?
What is supplementary angles?
600
What are the 3 types of angles?
Acute, Obtuse, and Right.
600
Triangles that have one 90 degree angle
right triangle
600
What are the 3 types of triangles by sides.
Scalene, Equilateral, Isosceles
600
What is y?
180-92=88 degrees
600
The name given to two angles with a sum of 90 degrees.
What is complementary angles?