Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Find the area of the triangle with vertices
P
(
−
1
,
3
,
−
2
)
P(-1, 3, -2)
P
(
−
1
,
3
,
−
2
)
,
Q
(
4
,
−
2
,
5
)
Q(4, -2, 5)
Q
(
4
,
−
2
,
5
)
and
R
(
1
,
0
,
3
)
R(1, 0, 3)
R
(
1
,
0
,
3
)
.
Browse the problem library