Answer:
12.gon - An interior angle measures 150°
Called a Dodecagon, the sum of all of its interior angles is 1,800° therefore each individual angle is;
= 1,800/12
= 150°
15-gon - An exterior angle measures 24°
The sum of all the exterior angles of a polygon add up to 360 so a polygon with a 24° exterior angle is;
= 360/24
= 15°
16-gon - The sum of the interior angles is 2,520°
Known as a hexadecagon, each interior angle of this polygon is a 157.5° and when added up this comes to 2,520°.
18-gon - An interior angle measures 160°
The formula for calculating the interior angle of a polygon is;
Angle = (n−2) × 180° / n
160 = (n−2) × 180° / n
160n = 180n - 360
360 = 20n
n = 18
Other tiles
The sum of the exterior angles is 180º - all exterior angles must add up to 360º so this does not exist.
The sum of the interior angles is 2,160° - this is a 14 sided polygon which is not listed in the options.
<span>English is the official language in all four countries
All four countries embrace free-market economic principles
are your best choices.
English is the official language for all four countries, and while other languages are spoken inside, official businesses tend to give rise to the need of knowledge of English.
Also, all of them have free-market, which allowed their economies to grow greatly (with a few setbacks) over the years
hope this helps</span>
<span>The correct answer is: [B]:
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"irrigated plantations and a system of strict religious taboos" .
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Answer:
D. hydrogen compounds; hydrogen and helium gas; metal; rock
Explanation:
- The solar system theory suggests the formation of the solar system comprised of 98% if the gases as the hydrogen and the helium and least of the metals and rock mass.
A Sea Stack is an isolated remnant of bedrock standing above a wave-cut platform. Here is what Sea Stack formed. The cracks then gradually get larger and turn into a small cave. When the cave wears through the headland, arch forms.
