3 years ago

What is the sum of the interior angle measures of a 20-gon?

Mathematics

2 answers:

guapka [62]3 years ago

6 0

The answer is A: 360*

poizon [28]3 years ago

5 0

Step-by-step explanation:

360 one gon 18 therefore 18*20=360

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48,96

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Any help would be appreciated. Thank you!

trapecia [35]

Answer:

Area $=62.5\sqrt{6}$ square units

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$BC=5\sqrt{10}$ units

Step-by-step explanation:

In a right triangle the altitude drawn to the hypotenuse is the geometric mean of the segments at which this altitude divides the hypotenuse.

So,

$BD^2=15\cdot 10\\ \\BD^2=150\\ \\BD=\sqrt{150}=5\sqrt{6}\ units$

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$A_{ABC}=\dfrac{1}{2}\cdot BD\cdot AC=\dfrac{1}{2}\cdot 5\sqrt{6}\cdot (15+10)=\dfrac{125\sqrt{6}}{2}=62.5\sqrt{6}\ un^2.$

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3 years ago

A construction crew has just finished building a road. The road is 10 5/6 kilometers long. If the crew worked for 5 days, how ma

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Answer:

Step-by-step explanation:

10 5/6 km...in 5 days

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65/30 =

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