117.8 because angle at a point add up to 360 so 360 -(90 + 38.2+31.7+82.3) =117.8
Yes they can all have the same
20 - .07c = 17.13
20 - 17.13 = 2.87
2.87/7 = 41
Her call took 41 minutes
Pythagorean theorem:
AC² + BC² = AB²
since this is isosceles (2 sides the same length), we can just let BC = AC and get
AC² + AC² = AB²
2AC² = AB²
AC² = AB²/2
AC = √(AB² / 2)

AC and BC are 6 meters
Answer:
0.28125 or 9/32
Step-by-step explanation: