These problems are rather easy. What you need to remember is that the parallel line segments will always contain the same number so the angle (65) on b2 would be the same angle for a2, bt at. so now to find the angle for b1 and a1 so we would subtract 65( the angle for B2) by 180 (the angle for a line) which would come out to be 115.
i hope this helped you, if not heres a link to a website that explains what i tried to explain.
Answer:
A regular polygon has equal length sides with equal angles between each side. Any other polygon is an irregular polygon, which by definition has unequal length sides and unequal angles between sides. Circles and shapes that include curves are not polygons - a polygon, by definition, is made up of straight lines.
Step-by-step explanation:
The answer to 600,000+80,000+10 in standard form is simple. It's 680,010. Just do the addition if you don't understand how to turn a math problem into standard form