Answer:
- Missing number = 22, missing angles = 27° and 54°
Explanation:
One angle is 5 more than a number:
The second goes twice the measure of the first:
- B = 2A = 2(x + 5) = 2x + 10
The third angle measure 99°:
The sum of interior angles is 180°:
- A + B + C = 180°
- x + 5 + 2x + 10 + 99 = 180
- 3x + 114 = 180
- 3x = 66
- x = 22
The missing angles:
- A = 22 + 5 = 27°
- B = 2A = 2(27) = 54°