Question

Is this right?
http://prntscr.com/diosye
@3mar

Answer 1

Yes

Answer 2

\[\Huge\color{LimeGreen }\checkmark\]
Congratulations!


Take a look at that site. It is cool and interesting!
http://www.mathportal.org/calculators/analytic-geometry/triangle-calculator.php


and I think you can check yourself!

Answer 3

This person is corresct

Answer 4

Thanks as always guys!

Answer 5

I thank you @poto very much...

Thank you for your appreciation!
+Thank you for your confidence.

Answer 6

and Thank you for the medal! by the way!

Answer 7

Honor is mine to be your helper!