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bearhunter [10]
3 years ago
9

About how long ago did our solar system form? 3.8 billion years ago 4.6 billion years ago 5 billion years ago 13.7 billion years

ago
Physics
1 answer:
olga2289 [7]3 years ago
7 0
4.6 billion years agony
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What is the unit of measurement of velocity
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A solid of density 8000 kgm.. weighs 0.8 kgf in air. When it is completely
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the measure of each exterior angle of a regular pentagon is ___ the measure of each exterior angle of a regular nonagon
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Answer:

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(b) 40°

Explanation:

PENTAGON

First, we calculate the total angles in a Pentagon using:

180(n - 2)

Where n = number of sides of the polygon, in this case, 5.

Hence, the total angle in a polygon is

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Therefore, each angle will be:

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Because the interior angle and exterior angle form a straight line (180°), the exterior angle of a regular pentagon will be:

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The exterior angle of a regular Pentagon is 72°

NONAGON

First, we calculate the total angles in a Nonagon using:

180(n - 2)

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Hence, the total angle in a polygon is

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Therefore, each angle will be:

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Because the interior angle and exterior angle form a straight line (180°), the exterior angle of a regular nonagon will be:

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The exterior angle of a regular Nonagon is 40°

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