41. It is the only right triangle in which two of the medians are perpendicular to each other. 42. The 3 : 4 : 5 triangles are the only right triangles with edges in arithmetic progression. 43. 2.7 Andrew Jackson squared, isosceles right triangle . 44. Here right triangles made from symmetry sections of regular polygons are used to calculate fundamental trigonometric ratios. 45. This formation is the approximate shape of a right triangle , with Vega located at its right angle. 46. The 30? 60? 90?triangle is the only right triangle whose angles are in an arithmetic progression. 47. Using right triangles and the concept of similarity, the trigonometric functions sine and cosine can be defined. 48. :How about " The pythagorean theorem is a relation between the three sides of a right triangle . 49. It helps by stating a clear relationship between the lengths of the sides of a right triangle . 50. An isosceles right triangle is also rep-2.
