You just need to know that a factor is one of the two numbers you multiply together to get a product. Prime numbers have only two factors: 1 and the number itself.
Answer:
11/13 x 4 = 3 5/13
Step-by-step explanation:
Circumference: 2πr C=18 so r= 18/2π= 9π
Arc length = rθ 6=(9π)θ θ=6/9π
Convert to degrees by multiplying by 180/π
6/9π x 180/π = 120 degrees
