Ever found yourself staring at a stop sign and wondering why it has exactly eight sides, or trying to remember the formula for the area of a circle when helping with homework? With complex theorems, confusing formulas, and terminology that sounds like it’s from an ancient Greek puzzle book, understanding geometry can feel more challenging than squaring a circle! Our geometry trivia collection transforms these mathematical mysteries into engaging questions covering everything from basic shapes to mind-bending 3D figures. Perfect for math enthusiasts or anyone who’s ever wondered why pizza slices are triangles but the whole pizza is a circle.
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Geometry Trivia Questions and Answers
- What shape has 4 equal sides?
Answer: Square - How many sides does a triangle have?
Answer: 3 - What shape is a ball?
Answer: Sphere - How many sides does a hexagon have?
Answer: 6 - What do you call a shape with 3 sides and 3 angles?
Answer: Triangle - What is a shape with 5 sides called?
Answer: Pentagon - How many corners does a cube have?
Answer: 8 - What shape has only one face?
Answer: Circle - How many sides does a square have?
Answer: 4 - What shape has no straight edges?
Answer: Circle - What is the name of a triangle with all sides equal in length?
Answer: Equilateral triangle - How many faces does a cube have?
Answer: 6 - What is the name for the distance around a circle?
Answer: Circumference - What is the name for a triangle with one right angle?
Answer: Right-angled triangle - How many lines of symmetry does a square have?
Answer: 4 - What is the sum of the angles in a triangle?
Answer: 180 degrees - What is the name for a 10-sided polygon?
Answer: Decagon - How many edges does a cube have?
Answer: 12 - What is the name for a triangle with no equal sides?
Answer: Scalene triangle - What 3D shape has a circular base with a point at the top?
Answer: Cone - What is the line that cuts a circle in half called?
Answer: Diameter - What is the formula to find the area of a rectangle?
Answer: Length × Width - What is a polygon with 8 sides called?
Answer: Octagon - What is the sum of angles in a quadrilateral?
Answer: 360 degrees - What type of angle is exactly 90 degrees?
Answer: Right angle - What is the name for a triangle with two equal sides?
Answer: Isosceles triangle - What is the line from the center of a circle to its edge called?
Answer: Radius - What is the formula for the area of a triangle?
Answer: ½ × base × height - What is a angle that measures more than 90 degrees but less than 180 degrees called?
Answer: Obtuse angle - What is a angle that measures less than 90 degrees called?
Answer: Acute angle - What is the name for a quadrilateral with opposite sides that are parallel?
Answer: Parallelogram - What is the formula for the area of a circle?
Answer: πr² - What is the value of π (pi) rounded to two decimal places?
Answer: 3.14 - What is a straight angle in degrees?
Answer: 180 degrees - What are parallel lines?
Answer: Lines that never meet and are always the same distance apart - What is a 7-sided polygon called?
Answer: Heptagon - What is the formula for the perimeter of a square?
Answer: 4 × side length - What is the name of a quadrilateral with all sides equal?
Answer: Rhombus - What is the name of a shape that has 9 sides?
Answer: Nonagon - What do you call two angles that add up to 90 degrees?
Answer: Complementary angles - What do you call two angles that add up to 180 degrees?
Answer: Supplementary angles - What is the name for the point where two or more lines meet?
Answer: Vertex - What is the name of the famous Greek mathematician who created a theorem about right triangles?
Answer: Pythagoras - What is the Pythagorean theorem?
Answer: a² + b² = c² - What is the name of the 3D shape that has a polygonal base and triangular faces that meet at a point?
Answer: Pyramid - What is the formula for the volume of a cube?
Answer: side length³ - What is the name for the shortest distance between two points?
Answer: Straight line - What is the formula for the volume of a rectangular prism?
Answer: length × width × height - What is the formula for the surface area of a cube?
Answer: 6 × side length² - What is the total number of degrees in the angles of a hexagon?
Answer: 720 degrees - What is the only regular polygon that can tile a plane by itself?
Answer: Regular hexagon - What famous problem involves finding the area of a circle using only a compass and straightedge?
Answer: Squaring the circle - What is the name of the point that is equidistant from all points on a circle?
Answer: Center - What is the formula to find the number of diagonals in a polygon with n sides?
Answer: n(n-3)/2 - What is the measure of each interior angle in a regular pentagon?
Answer: 108 degrees