It's best to use the lowest number since the GCF will max out on the lowest number's highest factor.
18:
2
3
6
9
18
Let's start from the largest factor:
52/18 = 2.888888888_ (not a factor so 18 is eliminated)
52/9 = 5.7777777777_ (not a factor)
52/3 = 17.333333333_ (nope)
52/2 = 26
The only common factor within all of them is 2.
Answer:
23.6
Step-by-step explanation:
<u><em>Finding AC:</em></u>
Cos 61 = 
0.48 × 10 = Adjacent
AC = 4.8
<u><em>Now, CB:</em></u>
Cos 29 = 
0.87 × 10 = CB
CB = 8.8
<u><em>The perimeter:</em></u>
=> 10+4.8+8.8
=> 23.6
Answer:a
Step-by-step explanation: