Right Angles Inscribed in Semicircle Proof
Illustration of a circle used to prove "Any angle inscribed in a semicircle is a right angle."
Lateral Sliding Contact
The lines of contact are equal, but the axes are neither parallel to each other, or the line of contact.
Still Life with Globe and Telescope
Still life arrangement including a globe, telescope, book, right angle, rolled map, and dividers.
Pythagorean Theorem Triangle
Right triangle with squares that can be used to illustrate the Pythagorean Theorem.
Resultant Vector With Vectors at 90 degrees
Illustration of the resultant vector when two vectors are acting upon a body at point P at 90 degrees.