This is a "three star" geometry problem where prior math problem skills and proof experience is recommended to solve this relationship between the inverses of heights.
An annulus of a circle is defined and then a proof like problem is posed involving area and radius of circles.
A "three star" geometry problem which requires prior math problem solving skills and proof writing skills to solve this "Bag of Balls" radius of balls problem.
A realistic world problem using the knowledge of chords and the parts of a circle to solve. Test your knowledge on this brain teaser!
Find the area of this circumscribed triangle with your geometry skills.
A "three star geometry problem" - requiring the knowledge of what a cuboid is and a some knowledge of how to do proofs.
This is a "three star" geometry problem where prior knowledge of circles and triangles is recommended to solve this circle in the corner problem.
Distance problem using a spherical radius and height.
A geometric proof. Prove two angles in this model are equal in measure.
This is a proof problem, considered a "three star" geometry problem requiring knowledge of proofs and properties of circles to solve this equal area of inscribed polygons problem.
Use your right triangle solving skills to solve this ladders in a hole problem.
A "three star" geometry problem where some experience of math problem solving skills and knowledge of circles is recommended to solve this lunes (parts of a circles) area problem
A challenging proof like geometry of finding the square inscribed in a triangle.
Use your triangle solving skills to solve this triangle problem and then apply it to the real world.
A "three star geometry problem" requiring knowledge of how to complete geometric proofs. The problem explains what the order of a vertex is and asks for the proof of a generalization.
Mathchallenge offers this mathematical reasoning problem, a one star problem requiring nothing more than a logical mind and paper and pencil, to deduct the painted faces problem
A "three star geometry problem" requiring knowledge of how to complete geometric proofs properties of parallelogram.
This is a "three star" geometry problem where prior math problem skills and proof experience is recommended. Tile constructions may be used to solve this perimeter and area problem.
Using knowledge of surface area of a cylinder formulas and volume of a cone, find the height of a cone / cylinder.
This is a "three star" geometry problem where prior math problem skills and proof experience is recommended to solve this "Perpendicular Construction" problem.