Having been given the perimeter and perpendicular of a right angled triangle, it is required to find the triangle.

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This is the title page of the Nova Scientia (1537) of Niccolo Tartaglia (1499-1557). In this work, Tartaglia discussed the mathematics of artillery and developed methods for determining the range of a cannon.

The square root of half the number of bees in a swarm has flown out upon a jessamine bush; 8/9 of the swarm has remained behind.

A set of four congruent circles whose centers form a square is inscribed in a right triangle ABC where C is the right angle and serves as one corner of the square. Find their radius in terms of the sides; a,b,c, of the triangle.

There is a garden is the shape of a rhombus whose side is 768.52 feet. Within the garden is an inscribed square flower bed whose side is 396 feet. What is the area of the garden?

A new history of Greek mathematics, taking into account the latest research.

The triangle ABC has a right angle at C. Show that 1/ED=1/AC+1/AB

The highest point of the Andes is about 4 miles above sea level.

A sketch of the history of topology, beginning with the polyhedron formula, but continuing up to the present.

A tree is 20 feet tall and has a circumference of 3 feet. There is a vine that winds seven equally spaced times around the tree and reaches the top. What is the length of the vine?