3s^2 + 4s^2 = 7s^2
3s^4 + 3s^4 = 6s^4
To take a square root of a decimal that can be taken the square root fully, in other words not an irrational number, one can write the decimal as a fraction then take the square root of both the top and bottom values.
For example : sq. root of 0.5
Sq root (1/2) = sq. root of 1/sq root of 2
1/ sq root of 2 or sq. root or 2/2.
Let's call the missing angles Q, R, and S. We know that Q = 2R and S = R - 8 and we also know that Q + R + S = 180. So that really just means that 180 = 4R - 8 Add 8 on both sides of the equal sign
188 = 4R So we divide on both sides of the equal sign by 4
47 = R And that means that Q = 2 * 47 So Q = 94 and S = 47 - 8 So S = 39
39 + 94 + 47 = 180
The missing angles are 39 degrees 94 degrees and 47 degrees.
The answer is a as the definition of an angle bisector is a line or ray that divides an angle into two congruent angles :)