Wednesday, January 20, 2016

What is the perimeter of the right angle triangle given two sides 3 and 4 ?

Given the right angle triangle with two sides 3 and
4


To find the perimeter first we will need to determine the
length of the third side which is the hypotenuse.


We will
use the formula to find the hypotenuse.


We know that if a
and b are sides of a right angle triangle and c is the hypotenuse , then c^2 = a^2 +
b^2


Let us
substitute.


==> c^2 = 3^2+
4^2


==> c^2 = 9 + 16 =
25


==> c = 5


Then the
length of the third side is 5.


Now we will calculate the
perimeter.


==> P = 3 + 4 + 5 =
12


Then the perimeter is 12
units.

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