U can use the Pythagorean theorem which is (a^2 + b^2 = c^2) It'll help you a lot
Answer:
it's an angle X duh he he he be
Step-by-step explanation:
10 is the value of A ......
Answer:
good to know. but what's the question?
Answer:
35
Step-by-step explanation:
Alright this is like a linear pair. All three angles add up to 180; so this is the set up:
40 + 2x + 30 + 40 = 180
2x + 110 = 180
2x = 70
x=35