tonipoo610
NEED HELP CUZ MY TEACHER IS A POOPHOLE
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tonipoo610
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The area of a right triangle is 30mm squared. The height is 12mm. Find the perimetier
tonipoo610
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i no im probs stupid for asking dis shizzle
tonipoo610
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I understand perimeter but i just don't get the concept of finding the perimeter with the area and height
iluvreading
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FFirst you have to find the length of the side
tonipoo610
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well a right triangel is 90 degrees
tonipoo610
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uggg idn thats y i am asking :(
iluvreading
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you know the Pythagorean theory?
tonipoo610
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yupper leg squard +leg squared= hypothenus squared
iluvreading
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Pythagorean Theorem
In any right triangle, the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares whose sides are the two legs.
Translated meaning is the long side squared equals the sum of the two other sides squared. use that to find the length of the side
tonipoo610
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i understand that so would you do 30 squared + 12 mm= Hyp
iluvreading
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yes
tonipoo610
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but i dont understand cuz 30 is the area so its not a leg
iluvreading
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c^2=a^2+b^2
tonipoo610
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but 30 sqaured is the area not the leg....
iluvreading
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\[\sqrt{30^2 + 12^2 =32.31099}\]
iluvreading
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now that you have all the sides of the triangle (30,12,32.31099) use this formula (a+b+c= the perimeter
tonipoo610
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I NOOO but isn't 30 the area! sorry i am sassy
iluvreading
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what i thought you wanted to find the perimeter not the area?
tonipoo610
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The area of a right triangle is 30mm squared. The height is 12mm. Find the perimetier
tonipoo610
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|dw:1366578785590:dw|
tonipoo610
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i am saying that 30 is the area not a leg of a right triangle
iluvreading
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ohhhh well then
tonipoo610
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The area of a right triangle is 30mm squared. The height is 12mm. Find the perimetier
iluvreading
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you need to find the length of sides
iluvreading
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hold on one sec see if I can find someone to help us figure this out
iluvreading
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@yrelhan4
yrelhan4
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You know the area. 1/2*b*h.. you know the height.. find the base..
once you know the base and height.. find the hypotenuse using pyth theorem..
And base, height, hyp.. that gives you the perimeter.
yrelhan4
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Yeah?
iluvreading
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hey you still there toni??
yrelhan4
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Add*
iluvreading
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@bostonblue
tonipoo610
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oo woopshow do u find the base
tonipoo610
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@yrelhan4
iluvreading
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All you have to do is multiply the area by 2 and divide it by the height of the triangle. This should give you the base.