C. 30%
you just need to add 1785 and 765 which would give you 2,550. From there, I honestly just guessed 30% then figured out 30% of 2550 which is 765.
Your answer is 5.
On the first triangle ABC, the answers are all divided by 7, to the triangle DEF. So 35/7 is 5. Hope this helps.
Answer:
75%
Step-by-step explanation:
Sorry if wrong >.<
1). The 2 angles add up to 180 degrees.
2). And 3). The 2 angles are equal.