3 years ago

A plane flew 193 km in 12 minutes at constant speed. what was the speed of the airplane in km per hour?

Mathematics

1 answer:

garri49 [273]3 years ago

4 0

A plane flew 193 km in 12 minutes at constant speed. what was the speed of the airplane in km per hour? "965 km'

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seraphim [82]

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Step-by-step explanation:

Sum of interior angles of a polygon with n sides:

$= (n - 2 )\times 180$

$Therefore, Each \ interior \ angle = (\frac{n - 2}{n} )\times 180$

$Sum \ of \ one \ of \ the \ interior \ angle \ with \ its \ exterior \ angle \ is \ 180^\circ$

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$Exterior \ angle + Interior \ angle = 180^\circ\\\\40^ \circ + (\frac{n-2}{n}) \times 180 = 180^\circ\\\\40 n + 180n - 360 = 180n\\\\40n = 180n - 180n + 360 \\\\40n = 360 \\\\n = 9$

Sum of exterior angles of a regular polygon = 360

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Therefore ,

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