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LiRa [457]
4 years ago
5

Not sure how to solve this (20 points) Serious answers only :)

Mathematics
1 answer:
Gnesinka [82]4 years ago
8 0
The formula of an area of a <span>rectangular triangle:
</span>
A=\dfrac{ab}{2}
a, b - a leg
A=\dfrac{5\cdot12}{2}=\dfrac{60}{2}=30\ mi^2\\\\A=\dfrac{13\cdot x}{2}
We have the equation:
\dfrac{13x}{2}=30\ \ \ |\cdot2\\\\13x=60\ \ \ |:13\\\\x=\dfrac{60}{13}\\\\x\approx4.6\ mi

Answer: 4.6 mi
<span />
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