Answer:
B
Step-by-step explanation:
A triangles angles always sum up to 180 degrees. Since you already have 1 angle which is 43 degrees you will do 180-43 which is 137. The only angles that add up to 137 degrees is letter B.
The answers are: 20 and 25.
Answer:
angle 2= 52.7° (same as angle 4)
angle 1 and angle 3 = 127.3°
Its 95
Tens = 90
Ones = 5
90 + 5 = 95
Oh. It's rounding. So, for example, depending what you were told to round to, the second problem would be 760-330=430
