Answer:
The choose D. 6.48x10'-3
I hope I helped you^_^
3/4 =3/4
4/6= 2/3
8/18= 4/9
9/15=3/5
7/21= 1/3
10/12= 5/6
4/8= 1/2
10/16=5/8
15/20= 3/4
3/30=1/10
The correct answer is:
C) 40°
1.236293992929299292929
cant see the full question ;/
