Area and Circumference Formula of Triangle

Various of Triangles

Here are all sorts of triangles, including:

Right-angled triangle (one corner 90º)
The equilateral triangle (both sides are the same length)
Equilateral triangle (three sides of equal length)
The pointed triangle (the third triangle is pointed angle, a < 90º)
Blunt triangle (a triangle in which one corner is a blunt corner, a > 90º)

Formula of Triangle Area

Information :
A = Tringular Area
p = pedestal
h = height

Example Question of Triangle Area

What is the area of a triangle having a 2cm and 3cm height?

Answer:
p = 2cm
h = 3cm

A = (a x t)/2
A = (2cm x 3cm)/2
A = 6cm²/2
A = 3cm²

So the area of a triangle having a base of 2cm and a height of 3cm is 3cm².

Formula of Circumference Triangle

C = AC + CB + BA

Information
C = Circumference

Example Question of Circumference Triangle

What is the circumference of the triangle below!

Answer:
AC = 13cm
CB = 13cm
BA = 10cm

C = AC + CB + BA
C = 13cm + 13cm + 10cm
C = 36cm

So The circumference of the triangle above is 36cm.

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