Search Results for “geometry”
Pirate Treasure
The famous pirate treasure problem.. look it up on the web. But dragging the gallows does not change the location of the treasure.
Point Trilateration
Use any three points and their distances from a fourth point to locate the fourth point.
Euclids Elements - Book 3 - Proposition 14
Creating a tangent on a circle given point A that is outside the circle.
Regiomontanus Problem
What is the best place on earth to observe a vertically suspended bar? The button gives a clue to a geometrical solution. Can you use the clue?
Euclids Elements – Book 1 – Proposition 22
This app shows how to create a triangle when you’re given a line composed of lines A, B, and C.
Pythagorean Theorem Calculator
A simple Pythagorean Theorem calculator that accepts inputs for either two sides or one side and the hypotenuse, then calculates the remaining side using the Pythagorean Theorem. Both exact and approximate solutions are provided, as well as the complete Pythagorean Theorem version.
Approximation of a Parabola
The construction is simple: two line segments are each divided uniformly into an equal number of segments. Index the top from left to right, and the bottom from right to left, then connect corresponding points.
Circles, Tangents, and Heptagon Diagonals
Two circles are centered at intersection points of diagonals of a regular hepatgon. It turns out that circles centered at intersection points in regular polygons (particularly interestingly with polygons of odd numbers of sides) can be tangent to many other diagonals of that polygon. Try resizing the circles by dragging the green points. How many diagonals can each circle be tangent to? Ready for more? Check out the nonagon version!
