Answer:
6, 12, 18, 24, 30, 36, etc.
Answer:
B
Step-by-step explanation:

As, 

=0.301029+0.845098+1.13943
=2.26007
=2.260(approximate)
To find the length of the ladder, you need to do Pythagorean theorem.
50^2 + 30^2 = x^2
2500 + 900 = x^2
x^2 =3400
x= square root of 3400
58.31 OR 10 root34
To find the angle:
tan theta = opposite/adjacent
50/30 = 5/3
theta = tan inverse of 5/3
= 59.04