Answer:
8
Step-by-step explanation:
I only see a black image, can you resend the image? or type it out here
A regular n-gon has n lines of symmetry
The angle of rotational symmetry for regular n-gon is 360 / n degrees.
X is 15because 15-10=5
x= 3*5
x=15
The set of integers consists (0), the positive natural numbers (1,2,3,) also called whole numbers, and their additive inverses the negative integers(-1, -2, -3,).
