What was M.C. Escher's favorite subject?

What shape has four sides the same length and have square corners? What shape has no corners? How small is a 14 point diamond? Which polygon must have congruent diagonals? Why is it important to keep track of corresponding parts in congruent figures? What is the vertex of ghi? What is the ratio of an igloos circumference to it's diameter? How many capital letters in the alphabet can be written using only straight lines? What angle for firing projectiles gives longest time? What is a quadrangle shape? What is the volume and surface area of a sphere with a radius of 3 meters? What is The area of a circle depending on the radius. Use the equation A(r) r2 to compute A(7). Round your answer to the nearest hundredth.? What is the maximum numbers of sides that a polygon can have? You have 5 sides and 2 right angles what are you? What is a 6 sided obelisk called? Is there a regular polygon such that each exterior angle measures 75 explain? Is The area of a rectangle always greater than the perimeter? What is the perimeter of a rectangle that is 9 feet by 16 feet? What is the reciprocal of 0.04? What is a shape with 11 sides?