Right-Angled Small 320×192 Medium 640×384 Large 1024×614 Download Tiff Original 2400×1440 | (172.9 KB) Description A right-angled triangle is any triangle having one right angle. The side opposite the right angle is called the hypotenuse. A right-angled riangle may be isosceles or scalene. Keywords math, right-angled, shapes, triangles Galleries Miscellaneous Right Triangles Source: V. I. Hallock I.C.S. Refrence Library (Scranton: International Textbook Company, 1905) 20: page 13 in arithmetic section
