Applying properties of triangles

What is the measure of angle A in the triangle?

• 116*
• 25*
• 62*
• 54*

Find the exterior angle if the interior angle is 90 degrees.

• 180

• 90

• 45

• 270

The exterior angle of a triangle is ______________ than either of its remote interior angles.

• <
• >
• ≤
• ≥

Find the value of x

• 13

• 26

• 30

• 60

Find the values of x & y

• x=72 & y=54

• x=126 & y=54

• x=54 & y=63

• x=63 & y=54

Find the measure of each angle indicated.

Mathematical Equivalence

ON

Find the measure of angle 3

If n had a exterior angle what would it be

• 98

• 180

• 124

• 138

22. Which of the following is the correct measure of angle ACD?

• A. 128 degrees

• B. 40 degrees

• C. 112 degrees

• D. 120 degrees

Use your knowledge about the triangle sum theorem or the exterior angle theorem to figure out the measure of the question mark.

• 120^o

• 115^o

• 95^o

• 85^o