Answer:
quadrilateral
Step-by-step explanation:
A 4-sided polygon is a <em>quadrilateral</em>.
Answer:
9
Step-by-step explanation:
Fun fact. The name nonagon comes from Greek enneagonon, and is arguably more correct, though less common than "nonagon".
Answer:
x=1
Step-by-step explanation:
6x+5=11
6x=11-5
6x=6
x=1