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Sliva [168]
3 years ago
8

The sum of the exterior angles of a polygon is always 180 degrees. True or False

Mathematics
2 answers:
bazaltina [42]3 years ago
8 0

Answer:

Option B

False

Step-by-step explanation:

False, because

The sum of the exterior angles for each polygon is consistent for all types of polygons whether they are regular or irregular- no matter how many sides is always 360 degree.

for example:

Take any polygon, call it a square and show that a exterior angle of a square is 360 degree.

An exterior angle is formed by a side of the square and an extension of an adjacent side as shown below in the figure.

Let a, b, c and x are exterior angles.

We know that each interior angle in a square is equal to 90 degrees.

Interior angle + adjacent angle = 180°

90°+ x= 180°

or

x = 180°-90° = 90°

Since there are 4 exterior angles

therefore, 4 \times 90^{\circ} = 360°

Therefore, the sum of the exterior angle of a square is 360°

Bezzdna [24]3 years ago
5 0
False. it said ,"The sum of the exterior angles of a polygon is always 360 degrees<span>. ... By an inductive proof, this is </span>true<span> for all </span>polygons." that is what i think.
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vagabundo [1.1K]

Answer:

The best estimate of the probability of getting a green marble from this bag of 50 marbles is 1/3.

Step-by-step explanation:

Andre gets 1 green marble out of 4 trials.

For Andre, the probability of getting 1 green marble is 1/4.

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For Jada, the probability of getting 1 green marble is 5/12.

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For Noah, the probability of getting 1 green marble is 3/9.

Hence, the best estimate of the probability of getting a green marble from this bag = (1/4 + 5/12 + 3/9)/3 = [(9 + 15 + 12)/36]/3 = 1/3.

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2 years ago
A number is less than 30 but greater than 10.
GenaCL600 [577]
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2 years ago
What is 7 billion in standard form?
zimovet [89]
If by standard from you mean numbers (123) and not words then

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4 0
3 years ago
Read 2 more answers
What multiples to 42 and adds to -2
solniwko [45]

Answer:

Step-by-step explanation:

xy = 42

x+y = - 2                   Substitute into the top equation

y = -2 - x                   Put in for y

x(-2 - x) = 42             Remove the brackets

-2x - x^2 = 42           Subtract 42 from both sides.

-2x - x^2 - 42 = 0      Put in the more normal order.

-x^2 - 2x - 42 = 0      Multiply by -1

x^2 + 2x + 42 = 0

This cannot be factored. It gives complex roots as it is written. I will give you the answer but I kind of doubt the question is correct.

x1 = - 1 + 6.40i

x2 = -1 - 6.40i

Leave a comment if you have a correction.

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3 years ago
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lidiya [134]

Answer:

0.8

Step-by-step explanation:

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0.96/1.2 =0.8

4 0
3 years ago
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