5.08 Quiz The Triangle Sum Theorem

Question: What is the value of x?

M∠B= 75

M∠C= 50

M∠A= x

Answer: x= 55

Question: What is m∠D ?

M∠A= 14

M∠B= 45

M∠C= 27

Answer: M∠D= 32

Question: What is m∠G ?

M∠F= x-5

M∠G= 3x+25

M∠H= x

Answer: M∠G= 121

Question: What is m∠CAD?

M∠C= 90

M∠B= 25

Answer: M∠CAD= 115

Question: The measure of ∠DAB equals 105º. The measure of ∠ACB equals 35º.

What is m∠ABC?

Answer: M∠ABC= 70