Answer:
mG = 121
Step-by-step explanation:
add all angles to make 180
even though the corners are not known, add them together and solve for x
x + (3x + 25) + (x - 5) = 180
5x + 20 = 180
5x = 160
x = 32
now that you know x, plug it into corner g equation
(3x + 25)
3*32 + 25
96 + 25 = 121
