Answer:
Option 4
Step-by-step explanation:
B = D = 75
A = C = 180 - 75 = 105
3 can be squared twice to get the value of 9. 3x3=9
Combine like terms.
2x + 6 + 6x - 1
8x + 5
Answer:
x=7.8
Step-by-step explanation:
take 49 degree as reference angle
using cos rule
cos 49=adjacent/hypotenuse
0.65=x/12
0.65*12=x
7.8=x
