Geometry Genius Quiz Test your knowledge of geometry with this challenging quiz of 10 questions. Are you a true geometry genius? rihanna80 published on June 10 Stacked 1/10 What is the sum of the interior angles of a triangle? 90 degrees 180 degrees 270 degrees 360 degrees 2/10 What is the formula for the area of a circle? πr^2 2πr πr r^2 3/10 Which type of angle is greater than 90 degrees but less than 180 degrees? Acute angle Obtuse angle Right angle Straight angle 4/10 What is the name of a polygon with five sides? Hexagon Pentagon Octagon Decagon 5/10 In a right triangle, which side is opposite the right angle? Hypotenuse Adjacent Opposite Base 6/10 What is the volume of a cube with side length 4 units? 16 cubic units 32 cubic units 64 cubic units 128 cubic units 7/10 What is the sum of the exterior angles of any polygon? 90 degrees 180 degrees 360 degrees 720 degrees 8/10 Which geometric shape has all sides and angles equal? Square Rectangle Rhombus Parallelogram 9/10 What is the formula for the circumference of a circle? 2πr πr^2 2r r^2 10/10 What is the name for a three-dimensional figure with a polygonal base and triangular faces? Cube Cylinder Pyramid Sphere