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forsale [732]
3 years ago
5

I'll mark the Brainliest answer and You'll receive 20 POINTS!

Mathematics
1 answer:
alina1380 [7]3 years ago
6 0

A decagon has 10 sides.


The sum of the interior angles is found using the formula S = (n-2)*180, where n is the number of sides.

The total sum of the interior angles of a decagon would be:

(10-2) *180 = 8 * 180 = 1440 degrees.


Now to find the measure of each interior angle, divide the total sum by the number of sides:

1440 / 10 = 144

Each angle is 144 degrees.

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How many solutions does the following equation have ? -3x+9-2x=-12-5x?
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3 years ago
А
Ganezh [65]

Answer:

168 meters squared

Step-by-step explanation:

So we know that Jake walked from b to c and d meaning he didn't go from a to b, but we also know that scarlet walked a to b so to find the length we can subtract scarlet's walk by jake's walk or 38-31 which is 7.

So we know the length of one side is 7 so this means we have side a to b and c to d, but we still need to know b to c. So what we can do is get the length of a b c and d and isolate it so that we only have b to c. To do this we get the length of 7 and double it which is 14 and take it away from the 38m

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so now we know that the side is 24 and we can solve for the area

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3 years ago
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