√70以上 30 60 90 triangle area formula 498845-30-60-90 triangle theorem formula
30 60 90 Triangle Calculator Formula Rules The 45°45°90° triangle, also referred to as an isosceles right triangle, since it has two sides of equal lengths, is a right triangle in which the sides corresponding to the angles, 45°45°90°, follow a ratio of 11√ 2 Like the 30°60°90° triangle, knowing one side length allows you to determine the lengths of the other sides30 60 90 triangle formula Assume that the shorter leg of a 30 60 90 triangle is equal to a Then the second leg is equal to a√3 the hypotenuse is 2a the area is equal to a²√3/2 the perimeter equals a (3 √3) The formulas are quite easy, but what's the math behind them? 30-60-90 triangle theorem formula
