Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
For a triangle whose sides measure
a
a
a
,
b
b
b
and
c
c
c
, the semi-perimeter
s
s
s
is defined as a)
a
+
b
2
\dfrac{a+b}{2}
2
a
+
b
b)
a
+
b
+
c
2
\dfrac{a+b+c}{2}
2
a
+
b
+
c
c)
a
+
b
+
c
a+b+c
a
+
b
+
c
d)
a
+
b
+
c
3
\dfrac{a+b+c}{3}
3
a
+
b
+
c
Browse the problem library