I decided to extend the challenge by adding if then else to add an output but it is not working.
What am I doing wrong?[code]//
// main.c
// Triangle
//
// Created by Wendy Meyeroff on 5/2/14.
// Copyright © 2014 Big Nerd Ranch. All rights reserved.
//
#include <stdio.h>
static int totalValue = 180;
int main(int argc, const char * argv[])
{
float angleA = 20;
float angleB = 60;
float angleC = totalValue  (angleA + angleB);
printf(“The third angle of the triangle is %.0f.\n”, angleC);
if (angelA = 90);
{
printf("The triangle is a Right Triangle");
}
else if (angleC = 90);
{
printf("The triangle is a Right Triangle");
}
else if (angleB = 90);
printf("The triangle is a Right Triangle");
return 0;
}
[/code]
What i want to do is print “the triangle is a right triangle” if one of the angles is 90.
Good try but you have some interesting coding errors:

Misuse of the assignment operator;
 semicolons in the wrong places; and
 missing braces.
[quote] if (angelA = 90); < this semicolon should not be here, and '=' should be '=='
{
printf("The triangle is a Right Triangle");
}
else if (angleC = 90); < this semicolon should not be here, and '=' should be '=='
{
printf("The triangle is a Right Triangle");
}
else if (angleB = 90); < this semicolon should not be here, and '=' should be '=='
< missing brace ({)
printf("The triangle is a Right Triangle");
< missing brace (})
[/quote]
This is what you wanted to write:
if (angelA == 90)
{
printf ("The triangle is a Right Triangle\n");
}
else if (angleC == 90)
{
printf ("The triangle is a Right Triangle\n");
}
else if (angleB == 90)
{
printf ("The triangle is a Right Triangle\n");
}
which can also be written as:
if (angelA == 90  angleB == 90  angleC == 90)
{
printf ("The triangle is a Right Triangle\n");
}
The misuse of the assignment operator is a common coding error, even among experienced programmers:
if (foo = bar) {
...
}
The above statement is not testing for equality; it is, most likely by a coding accident, testing for nonzero. If the value of foo becomes nonzero after the assignment, then the if statement’s block is executed.
Thank You
I had tried to put all three together but it didn’t work so I tried them seperatly.
I am new to language programing, but I did program using a Data base called Helix.