A right triangle is a triangle that has a 90 degree angle as one of its angles. This page will allow you
to calculate things related to a right triangle.
Notes about right triangles:
The base b, height h and single right angle define the right triangle.
You can get help figuring out other things about right triangles, here.
The area of a right triangle is 1/2 × base × height, or 1/2bh.
The perimenter of a right triangle is b+h+(b2+h2)1/2.