Angle Sum Triangle Inequality Theorems

Which equation would solve for the variable?

• x = 127 + 22

• x + 127 + 22 = 90

• x =127 - 22

• x + 127 + 22 = 180

Find the measure of the indicated angle. 

• 95

• 85

• 35

• 45

Biggest angle?

• D

• E

• F

Name the largest angle in this triangle.

• ∠D

• ∠E

• ∠F

Triangle Theorems

In a triangle the sum of the length of any two sides is greater than the length of the third side.

• Inequality

• Mid-Point

• Sum of Angles

• Pythagorean

• Exterior Angles

• Sum of Angles

• Pythagorean

• Exterior Angle

• Isoscoles

• Vertical Angles

In a triangle, if you were to extend one side length, that angle is equal to the sum of the other two interior angles

• Exterior Angle

• Isoscoles

• Vertical Angles

• Complementary Angles

• Supplementary Angles

The smallest angle would be located where in a triangle?

• Across from the smallest side.

• Across from the largest side

• Cannot tell

Name the angles from SMALLEST to LARGEST

• Q, R, P

• P, Q, R

• R, P, Q

• R, Q, P

Name the sides from SMALLEST to LARGEST

• RS, ST, TR

• ST, RT, RS

• RT, ST, RS

• RT, RS, ST