The Formula of Triangle

Triangle is a form made of three sides in the form of a straight line and three angles.

This time we will share knowledge about the formula of area and circumference of triangle. the following is the formula of the area and circumference of the triangle:

1. Triangle Area

Formula:

Triangle area = 1/2 (Pedestal x Height)

Example:
What is the area of the image bellow ?

Answer:
Pedestal = 5cm
Height = 2cm

Triangle area = 1/2 (Pedestal x Height)
Triangle area = 1/2 (5cm x 2cm)
Triangle area = 1/2 (10cm²)
Triangle area = 5cm²

So the area of the image is 5cm².

2. Triangle Circumference

Formula:

Triangle circumference = a + b + c

Information:
a, b, and c = side of triangle

Example:
What is the area of the image bellow?

Answer:
a = 3cm
b = 3cm
c = 4cm

Triangle circumference = a + b + c
Triangle circumference = 3cm + 3cm + 4cm
Triangle circumference = 10cm

So the circumference of the image is 10cm.

The end of this article. Sorry if there are mistake in this article.

The end of word wassalamualaikum wr. wb.

Reference:

• To'Ali's book of business accounting mathematics

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