What is the meaning of dihectagon?

Name a solid with 8 vertices? How many hectares in 1 million square meter? 1 sketch all binary tree with six pendent vertices? What is 7 divided by 972? How big is 8000 square feet? What do you call a 3d figure with four faces? The perimeter of an equilateral triangle is 45 centimetersFind the length of an altitude? How many equal chords can a circle have? How many faces edges vertices does a cylinder have? Can an ellipse tessellate? What does collinear mean? What is the sq ft of 10 ft and 13 ft? How do you find the perimeter of a triangle? How many tons is 3000 yards of gravel? How much weight does a 6x6 post support vertically? What are two angles whose measures have sum of 180 degrees? How many lines is it in one paragraph? What is the area of an pentagon? What is the rounded end of a building called? How do you find the area of a nonagon?