PLEASE PLEASE PLEASEEE ANSWER THIS ASAP I AM GONNA FAILLLL. WAIT omg i have 69 points BAHAHAHA 30 points and a little extra gift: my kindness

PLEASE PLEASE PLEASEEE ANSWER THIS ASAP I AM GONNA FAILLLL WAIT omg i have 69 points BAHAHAHA 30 points and a little extra gift my kindness class=

Respuesta :

Answer:

a=50,b=70

Step-by-step explanation:

you add all the known angle and subtract it by 180 and bam! you find the missing angle

Answer:

a- 50

b- 70

Step-by-step explanation:

A straight line measures out to be 180 degrees

a- 40 + 90 + a = 180

b- 61 + b + 31 +18 = 180