18a: 3*3*3*2*a
20a: 2*2*5*a
6a: 3*2*a
the greatest common factor is 2a
Answer:
n = 24
Step-by-step explanation:
subtract 12
n/4 = 6
multiply by 4
n = 24
Find the length of the hypotenuse by using either "sine" or "cosine".
Sine= Length of opposite side/ Hypotenuse
Cosine= Length of adjacent side/ Hypotenuse
In order to use one of these, it depends on which angle they give you other than 90 degrees.
Hope this helps!