There are 22 fourths in 5 1/2
∠ABC=∠CDA=72º
∠DAB=∠BCD=x
∠ABC+∠CDA+∠DAB+∠BCD=360º
Therefore:
72º+72º+x+x=360º
144º+2x=360º
2x=360º-144º
2x=216º
x=216º/2
x=108º
So, <span>∠DAB=∠BCD=x=108º
Answer: </span>∠DAB=108º (B)
Answer:
x= -19
Step-by-step explanation:
5x-10 = 7x +28
2x=-38
-38÷2
×= -19
Answer:
Step-by-step explanation:
take 22 degree as reference angle
using cos rule
cos 22=adjacent/hypotenuse
0.92=56/x
x=56/0.92
x=60.86
x=60.9
