I am working in devc++, this is a very simple problem but I am not seeing any printed output—here are the directions and my code from following those directions…

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Write a program that calculates the area of a right triangle. The formula is one half the height multiplied by the base. You must assign values within the program (no user input). Dimensions are real numbers, so your variables should be type float. The result should be output to the screen in the following manner.

(Note: where you see ll(LL), hh, and aa below, there should be numbers)

The area of a right triangle with base length 11 and height hh is aa

What I have tried:

#include <iostream>

using namespace std;

int main()

{

float base, height, area;

base=10.3

height=13.56;

area=1/2*base*height;

cout<<"The area of a right triangle with base 10.3″<<base<<"and height 13.56″<<height<<"is"<<area<<endl;

system("pause");

return 0;

}

Posted 10-May-20 1:48am

Member 14826587

Updated 10-May-20 12:58pm

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Member 13541763 10-May-20 8:14am

please make is clear that you trying to display only two digits of float value?

Patrice T 10-May-20 8:18am

Do you see no output or wrong output ?

Member 13541763 10-May-20 8:23am

dear, you have not shown us output.

Patrice T 10-May-20 8:28am

I am not the author of question, and my comment is not for you.

2 solutions

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phil.o · Accepted Answer · 2020-05-10T02:15:00

Solution 1

The problem here is the same as in one of your former questions. 1/2 is an integer division which will yield zero. Possible working formulas:

C++

area = 0.5 * base * height;
area = (base * height) / 2;
area = (1.0 / 2) * base * height;

Posted 10-May-20 2:15am

phil.o

Comments

Member 13541763 10-May-20 8:27am

simply convert area=1/2*base*height; to area=1/2.0*base*height;

Rick York · Accepted Answer · 2020-05-10T12:58:00

Solution 2

Phil.o has the right idea. Any of those will work.

While you're at it, you should change your output line to be less redundant.

C++

cout<<"The area of a right triangle with base "<< base <<" and height ″<< height << " is " << area << endl;

Posted 10-May-20 12:58pm

Rick York