A.Y_swagger
What is the perimeter of triangle ABC? Round to the nearest tenth.
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A.Y_swagger
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Tinman
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how much is one block
A.Y_swagger
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idk
juan_9292
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each block is one unit
Tinman
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yea but does he want yhe ans in units
juan_9292
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I don't think so, I guess It'll be just each block = 1unit... not necessary cm, nor m, nor none of those. since a unit isn't specific I think its appropriate
juan_9292
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A.Y_swagger; based on the figure you pretty much know the length of CB and AB.
once you know that just use the Pythagorean theorem. A^2+B^2=c^2
once you know C^2 get the sqrt and then just add up A B C
A.Y_swagger
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yea ok
A.Y_swagger
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cb = 5 units ab = 3 units
A.Y_swagger
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how does that get me my answer
juan_9292
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with that you now know two sides of the right triangle. You still need to find out the hypotneus idk how to spell it,
juan_9292
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which to find it you use the theory I mentioned above
A.Y_swagger
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a^2 + b^2 = c^2?
Tinman
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hypotenuse
juan_9292
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yea, and then just solve for c
juan_9292
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thanks Tinman
Tinman
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yea np
A.Y_swagger
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for my final answer i got 15
juan_9292
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its should be less, show me how you found c; perhaps I confused you
Tinman
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the answer should be 13.83
Tinman
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juan_9292 r u still there
juan_9292
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a^2+b^2=c^2
where c= √(a^2+b^2)
= √(5^2+3^2)=√25+9) = √(34)
so to find the perimeter you add up all of them. 5+3+√(34) which as Tinman found=13.83
and yea, just having internet problems now and then
Tinman
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or ok cuz i was goin to explain
juan_9292
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I was waiting to see if A.Y_swagger sent his work, but he didn't so I posted it up.
chris325
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Yes the answer is 13.8