Answer:

Step-by-step explanation:








<h3>Hope it is helpful...</h3>
Answer:
d/a 4
Step-by-step explanation:
∠1 and ∠3 complementary,
∠1 = ∠2,
so
∠1 and ∠2 complementary.
Answer : C.
Answer:
triangle 1, triangle 3,
Step-by-step explanation:
Triangle 1= 
Triangle 2= is wrong
Triangle 3= 
Triangle 4= is wrong.