In triangle abc, measure of angle a is 70°. angle b is congruent to angle c. what is the measure of angle b in degrees?

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option

i think the answer is d im not sure