Respuesta :

4th one is the answer but realy depending on the pic 

Answer:

m∠A = 20°(1st option)

m∠C = 100° because it is a vertical angle to the angle marked 100°.(3rd option)

m∠A + m∠B + m∠C = 180°(5th option)

Step-by-step explanation:

well...I took the assignment and got it right:)