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// C code
// This program will calculate the area of a trapezoid. // Developer: Faculty CMIS102
// Date: Mar 23, 2019
#include <stdio.h>
#include <math.h>
int main () {
	printf("Lab3 Math Formulas by:William Klingesetin\n");
/* variable definition: */
float baseA, baseB, height, area;
/* Prompt user for baseA */
printf("Enter the first base of the trapezoid: \n"); // Input the base
scanf("%f", &baseA);
/* Prompt user for baseB */
printf("Enter the second base of the trapezoid: \n"); // Input the baseB
scanf("%f", &baseB);
/* Prompt user for height */
printf("Enter the height of the trapezoid: \n");
// Input the height
scanf("%f", &height);
// Calculate the perimeter 
perimeter = baseA + baseB + height +
sqrt (height*height + (baseA – baseB)*(baseA – baseB)); 
// Print the result
printf("perimeter is : %f\n", perimeter);
return 0;
}

prog.c: In function ‘main’:
prog.c:21:1: error: ‘perimeter’ undeclared (first use in this function)
 perimeter = baseA + baseB + height +
 ^~~~~~~~~
prog.c:21:1: note: each undeclared identifier is reported only once for each function it appears in
prog.c:22:30: error: stray ‘\342’ in program
 sqrt (height*height + (baseA – baseB)*(baseA – baseB));
                              ^
prog.c:22:31: error: stray ‘\200’ in program
 sqrt (height*height + (baseA – baseB)*(baseA – baseB));
                               ^
prog.c:22:32: error: stray ‘\223’ in program
 sqrt (height*height + (baseA – baseB)*(baseA – baseB));
                                ^
prog.c:22:34: error: expected ‘)’ before ‘baseB’
 sqrt (height*height + (baseA – baseB)*(baseA – baseB));
                                  ^~~~~
prog.c:22:48: error: stray ‘\342’ in program
 sqrt (height*height + (baseA – baseB)*(baseA – baseB));
                                                ^
prog.c:22:49: error: stray ‘\200’ in program
 sqrt (height*height + (baseA – baseB)*(baseA – baseB));
                                                 ^
prog.c:22:50: error: stray ‘\223’ in program
 sqrt (height*height + (baseA – baseB)*(baseA – baseB));
                                                  ^
prog.c:22:52: error: expected ‘)’ before ‘baseB’
 sqrt (height*height + (baseA – baseB)*(baseA – baseB));
                                                    ^~~~~
prog.c:9:29: warning: unused variable ‘area’ [-Wunused-variable]
 float baseA, baseB, height, area;
                             ^~~~

Standard output is empty