Know Your Shapes? A quiz to see how much you know about shapes and angles. Lets see how you do! TayoAndNathan published on May 30, 201413 responses 1 5.0★ / 5 Questions in vertical order "Concave" is when the inside angle is bigger than 180 degrees. True or False? True False Neither A "trigon" is also known as a... Triangle Square Shape with 13 sides Shape with 30 sides What type of angle is this? Right Angle Obtuse Angle Acute Angle Reflex Angle How many sides does a "pentagon" have? Four Five Six Seven Which shape has four sides of equal length and four right angles? Triangle Square Rectangle Pentagon Which shape has 8 corners and sides? Hexagon Octagon Decagon Octakaidecagon What shape is a 50 cent coin? Hexagon Octagon Decagon Dodecagon What are the interior angles (in degrees) of a regular hexagon? 60 degrees 90 degrees 108 degrees 120 degrees A "Megagon" has how many sides? 1,000 10,000 100,000 1,000,000 How many corners does a "cube" have? 6 8 10 12