Remember to incorporate Bimdas, into you calculation and ensure where the addition and subtraction occur you work from left to right.
Answer:
240
Step-by-step explanation:
360-120=240
7 + 3 + 98
14/21 + /3 the 21 is inside the radical and the 3 is in a radical also
Answer:

Step-by-step explanation:
we know that
The formula of law of cosines is equal to

where
a, b and c are sides. C is the angle opposite side c
In this problem we have

substitute the given values






3π = 540 Degrees
Hope it helped :)