Triangle ABC is an isosceles triangle. AB = BC mA = 70° What is mB? A. 70° B. 40° C. 20° D. 10°

the answer is d

the answer is in the first quadrant, which make the y-int positive.

since the dots are going down, therefore the correlation is negative

i hope it is right.

honestly bro aint no one got time to answer these dumb question just do it p***y

step-by-step explanation:

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true