Answer:
Since the two base angles are congruent (same measure), they are each 70°. If we are given a base angle of say 45°, we know the base angles are congruent (same measure) and the interior angles of any triangle always add to 180°.
degrees
Step-by-step explanation:
b
it's either 200:15 or 20:15 or 15:20
see the pic for the answer
B. 55°
