Right triangle and "b" are the legs of the triangle. If the incircle is tangent to the hypotenuse AB at point P, then denoting the semi-perimeter as "s", we have and , and the area is given by This formula only applies to right triangles. If an altitude is drawn from the vertex with the right angle to the hypotenuse then the triangle is divided into two smaller triangles which are both similar to the original and therefore similar to each other. From this: In equations, where "a", "b", "c", "d", "e", "f" are as shown in the diagram. Thus Moreover, the
What a Beautiful Name to sing and which does not strain the voice with notes that are too high or too low. He also comments that the song is written in the key of D which is "the optimal key for both men and women." "What a Beautiful Name" had its worldwide digital release on 6 January 2017, and topped Billboard's Hot Christian Songs chart on 25 February. The single has held the top position for 38 weeks making it the second-longest-leading No. 1 in the 14-year history of the Hot Christian chart. The song which claims the distinction as the longest-leading No. 1