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NDA · Maths · Properties of Triangle
NDA Properties of Triangle — Formulas 1
Question
1
of 18
1.
What is the semi-perimeter
s
s
s
of a triangle with sides
a
,
b
,
c
a,b,c
a
,
b
,
c
?
A
s
=
a
+
b
+
c
s = a+b+c
s
=
a
+
b
+
c
B
s
=
a
+
b
+
c
3
s = \dfrac{a+b+c}{3}
s
=
3
a
+
b
+
c
C
s
=
a
b
+
b
c
+
c
a
2
s = \dfrac{ab+bc+ca}{2}
s
=
2
ab
+
b
c
+
c
a
D
s
=
a
+
b
+
c
2
s = \dfrac{a+b+c}{2}
s
=
2
a
+
b
+
c
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