Can area of a triangle be 0.5(c x a) instead of 0.5(a x c)?

  • Thread starter coconut62
  • Start date
  • #1
161
1
Please see the image attached.

Does that have anything to do with directions? The right-hand rule?
 

Attachments

Answers and Replies

  • #2
296
0
[itex]ca = ac[/itex], so yes.
 
  • #3
coolul007
Gold Member
265
7
Not in that figure, unless angle B is 90 degrees.
 
  • #4
using the magnitude of the cross-product of two vectors to find the ar

If you mean

Area of triangle = (1/2)||A x C|| = (1/2)||C x A||

as in, using the magnitude of the cross-product of two vectors to find the area of the triangle between them, then yes.
 

Attachments

  • #5
If you mean

Area of triangle = (1/2)||A x C|| = (1/2)||C x A||

as in, using the magnitude of the cross-product of two vectors to find the area of the triangle between them, then yes.
I didn't see the second part of your question. The direction of ||A x C|| or ||C x A|| doesn't matter because they have the same magnitude. That is why (1/2)||A x C|| = (1/2)||C x A|| is true.
 
  • #6
161
1
Thank you very much.
 

Related Threads on Can area of a triangle be 0.5(c x a) instead of 0.5(a x c)?

Replies
15
Views
1K
Replies
4
Views
1K
  • Last Post
Replies
6
Views
3K
Replies
7
Views
2K
  • Last Post
Replies
17
Views
2K
Replies
6
Views
1K
  • Last Post
Replies
2
Views
1K
  • Last Post
Replies
5
Views
2K
  • Last Post
Replies
3
Views
4K
Top