Classifying Angles
Types of Triangles
Finding Angle Measures
Identify & Classify
100
Angles that are less than 90 degrees
What is acute angles?
100
Triangles that have all sides equal
What is equilateral triangles?
100
The little box in the corner of a triangle or any figure represents what?
What is a right angle?
100
DOUBLE JEOPARDY: Classify this triangle by its sides.
It it Scalene, Isosceles, or Equilateral?
Isosceles: two sides are equal
200
Angles that are equal to 180 degrees
What is straight angles?
200
Triangles that have no equal sides
What is scalene triangles?
200
DOUBLE JEOPARDY:
What is the measure of each angle of an equilateral triangle?
What is 60 degrees?
200
Classify this triangle by its angles. Is it Acute, Obtuse, or Right?
Right. It has one right angle.
300
Angles that are equal to 90 degrees
What is right angles?
300
Triangles that have two equal sides
What is isosceles triangles?
300
TRIPLE JEOPARDY:
Two angle measures of a triangle are 74 degrees and 53 degrees. What is the measure of the third angle?
What is 53 degrees?
300
Classify this triangle by its sides. Is it Scalene, Isosceles, or Equilateral?
Scalene: all its sides are different lengths.
400
Angles that are greater than 90 degrees but less than 180 degrees
What is obtuse angles?
400
Triangles that have three angles less than 90 degrees
What is acute triangles?
400
TRIPLE JEOPARDY:
A triangle has 2 angles measuring at 78 degrees. What is the missing angle?
24
400
Classify this triangle by its sides: Scalene, Isosceles, or Equilateral?
Equilateral: All its sides are the same length.
500
The number of degrees in a triangle
What is 180 degrees?
500
Triangles that have one angle greater than 90 degrees
What is obtuse triangles?
500
What is the measurement of this angle?
50 degrees
500
DOUBLE JEOPARDY:
Classify this triangle by its angles: Acute, Obtuse, or Right
t?
Acute: All its angles are Less than 90 degrees. (<90 degrees)
600
DOUBLE JEOPARDY:
What is the point where two rays meet?
The Vertex (Endpoint)
600
Triangles that have one 90 degree angle?
What is a right triangle?
600
What is the measurement of this angle?
145 degrees
600
Classify this triangle by its angles. Acute, Obtuse, or Right?
Obtuse: This triangle has one 96 degree angle (greater than 90 degrees,>90 degrees)