Answer:
Step-by-step explanation:
Sum of the angles = 180°
(2x+7) + (4x-10) + (7x-25) = 180
13x - 28 = 180
13x = 20
x = 16
Angle B = 4x -10 = 54°
B
sin X
sin X = = =
17.5
Just use the equation 35÷2 to find how many times 2 can go into 35