Your answer would be postulates.
Answer:
Regular Octagon
Step-by-step explanation:
There are only three regular shapes that tessellate – the square, the equilateral triangle, and the regular hexagon. All other regular shapes, like the regular pentagon and regular octagon, do not tessellate on their own.
Answer:
9
Step-by-step explanation:
It’s isosceles because 2 acute angles and one 90 degree angle makes an isosceles triangle
Answer:
yes because it is the opposite side
