C Language Learning 9

Determine the type of triangle

Judging the type of the triangle based on the three edges of the input triangle, and outputting its area.

1#include <stdio.h>2#include <math.h>3 4 voidJudge_1 (DoubleXDoubleYDoublez);5 6 voidMain ()7 {8     DoubleA, B, C;9printf"Input tri-side a B C:");Tenscanf"%lf%lf%lf", &a, &b, &c); One Judge_1 (A, B, c); Aprintf"\ n"); - } -  the voidJudge_1 (DoubleXDoubleYDoublez) - { -     Doublem, S, area; -     if(x>y) +     { -m =y; +y =x; Ax =m; at     } -     if(x>z) -     { -m =Z; -z =x; -x =m; in     } -     if(y>z) to     { +m =Z; -z =y; they =m; *     } $ Panax Notoginseng     if(X+y>z && z-y<x) -     { thes = (x+y+z)/2.0; +Area = sqrt (s* (s-x) * (s-y) * (S-z)); A         if(x = = y && x==z) the         { +printf"equilateral triangle-area is:%lf\n", area); -         } $         Else if(x = = y | | y = = Z | | x==z) $         { -printf"isosceles Triangle-area is:%lf\n", area); -         } the         Else if(x*x + y*y = = z*z) -         {Wuyiprintf"Right Triangle-area is:%lf\n", area); the         } -         Else Wu         { -printf"Normal triangle-area:%lf\n", area); About         } $     } -     Else -     { -printf"cannot form a triangle \ n"); A     } +}

C Language Learning 9