180 likes | 324 Views
Triangle Angles. What is an angel?…I mean ANGLE!. Two rays with a common endpoint form an angle. Supplementary & Complimentary Angles. Two angles are supplementary if they add up to 180° - forming a straight line Two angles are complimentary if they add up to 90°.
E N D
What is an angel?…I mean ANGLE! • Two rays with a common endpoint form an angle
Supplementary & Complimentary Angles • Two angles are supplementary if they add up to 180° - forming a straight line • Two angles are complimentary if they add up to 90°
Exterior and Interior Angles • Interior angles are inside of the shape • Exterior angles are formed when a line of a shape is extended
The exterior and interior angle in the picture are an example of angles. • Complimentary • Supplementary
Pop Quiz: A triangle has sides and angles. • Two • Three • Four • Five
Pop Quiz: The three interior angles of a triangle add up to how many degrees? • 90° • 180° • 360°
The following is a(n) angle. • Right • Obtuse • Acute
When painting, a ladder would be set to form a(n) angle with the ground. • Right • Obtuse • Acute
Classify the triangle based on its angle measures. • Right Triangle • Obtuse Triangle • Acute Triangle
An obtuse triangle has one angle with a measure greater than 90° and two angles that are less than 90° • True • False
In a right triangle, the two acute angles are… • Complimentary • Supplementary
Classify the triangle. • Scalene • Isosceles • Equilateral
Classify the triangle. • Acute Isosceles • Obtuse Isosceles • Acute Scalene • Obtuse Scalene
Classify the triangle. • Right Scalene • Right Isosceles • Acute Isosceles • Obtuse Isosceles