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Tcecarenko [31]
3 years ago
6

Is 52800 cm greater than i kilometer

Mathematics
1 answer:
Valentin [98]3 years ago
6 0
79. Is 52 800 centimeters greater than 1 kilometer? According to the unit of conversion in every 1 kilometer, there is a total of 100 000 centimeters. Now, the given value of centimeters is equals to 52 800 => 1 km = 100 000 cm => 52 800 cm is less than the value of 100 000 cm which is equivalent to 1 km. Thus, the given is not correct. 52 800 cm is less than 1 kilometer.
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Answer:

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Step-by-step explanation:

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x^{2} =36+z^{2} \\\\y^{2}=25+z^2\\\\x^{2} +y^2=121\\\\

First equation is for triangle ABD

Second is for BCD

And the last one is for ACD

Substitute x^{2} and y^2

36+z^2+25+z^2=121\\\\61+2z^2=121\\\\2z^2=60\\\\z^2=30\\\\z=\sqrt{30}

As discovered before

y^2=25+z^2\\\\y^2=25+30\\\\y^2=55\\\\y=\sqrt{55}

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Explicación paso a paso:

Dado que hemos dado que

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