Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
7. Find the area of the triangle formed by the lines
y
−
x
=
0
,
x
+
y
=
0
y-x=0, x+y=0
y
−
x
=
0
,
x
+
y
=
0
and
x
−
k
=
0
x-k=0
x
−
k
=
0
.
Browse the problem library