AG and GB must be congruent and CG and GD must be congruent as well
The polygon in option 3 is not octagon at all, it is heptagon (or 7-sided polygon).
A convex octagon has no angles pointing inwards. More precisely, no internal angles can be more than 180°.
When some internal angle is greater than 180°, it is concave.
In option 2 you can see that one angle is pointing inward, then this octagon is concave.
Answer: correct choice is B.
X^2 + 6x - 27
(x - 3)(x + 9)
The answer is: (x - 3)(x + 9).
The alien would be about 20 LBS on the earth
X = -2 and -5
You can set both equal to 0 to find the answers.