Grain is t<span>he speckled appearance of a rock </span>
Ok, so, I have not read the lesson of course but this is an interesting middle school question. Maybe find a common pattern of angles and mention the most observed degrees of the angles (90 degrees, 60 degrees angels, ect.) I hope I can help in any way!
Answer:
17.2 million
Explanation:
I've seen this before in a quiz and remember the answer
Two flat surfaces intersect to form a line
