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Mathematics 8 Online
OpenStudy (anonymous):

Find the perimeter of the triangle. The legs are 12 and 16. A. 96 B. 20 C. 28 D. 48

OpenStudy (aravindg):

You need 3 sides to get the perimeter.

OpenStudy (anonymous):

any information bout triangle?

OpenStudy (anonymous):

@AravindG @divu.mkr that's all the information there is! The opposite side is 12 and the adjacent side is 16

OpenStudy (aravindg):

If its a right angled triangles then you can evaluate hypotenus using pythagorean theorem.

OpenStudy (aravindg):

*hypotenuse

OpenStudy (anonymous):

OpenStudy (anonymous):

we have to make cases

OpenStudy (aravindg):

That is a rt angled triangle.

OpenStudy (anonymous):

its a right angles triangle!!!!

OpenStudy (anonymous):

angled**

OpenStudy (aravindg):

|dw:1383205314228:dw|

OpenStudy (anonymous):

so how do I find the perimeter?

OpenStudy (aravindg):

First evaluate hypotenuse

OpenStudy (aravindg):

Then you get all three sides. Simply add the three sides to get perimeter.

OpenStudy (anonymous):

@AravindG okay, how do i evaluate the hypotenus?

OpenStudy (aravindg):

Pythagorean theorem.

OpenStudy (anonymous):

hypo = [a^2 + b^2]^1/2 where a and b are sides

OpenStudy (anonymous):

@divu.mkr @AravindG i got 400 for 12^2 + 16^2?

OpenStudy (anonymous):

take its root

OpenStudy (anonymous):

@divu.mkr im sorry im still really confused

OpenStudy (anonymous):

400^1/2 = 20

OpenStudy (anonymous):

thats hypo

OpenStudy (anonymous):

@divu.mkr oh okay! thank you :) xx

OpenStudy (anonymous):

np (:

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