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4 years ago

How many sides does a regular polygon have if the measure of an interior angle is 160?Justify your answer

Mathematics

1 answer:

Irina18 [472]4 years ago

6 0

Answer:

18 sides

Step-by-step explanation:

If the interior angle of a regular polygon is 160 degrees, then the exterior angle is 20 degrees. The sum of all exterior angles is 360 degrees so there must be 360/20 sides = 18 sides

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What happens in february dont say valintined day plzz

arlik [135]

You put this under mathematics when this has nothing to do with math. but just to help, i think groundhog day is usually in febuary. ;)

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3 years ago

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Determine the slope of the line that passes through the points (-2, 5) (1, -7)

Llana [10]

Answer:

-4

Step-by-step explanation:

Given points

(-2, 5) (1, -7)

Use slope formula to find the slope

m = (y2 - y1)/(x2 - x1)
m = (-7 -5)/(1 + 2) = -12/3 = -4

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3 years ago

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Plz answer this plato question about prob & stats!! need it quick

777dan777 [17]

Answer:

"dependent events since P(A and B) is not equal to P(A)* P(B)"

Step-by-step explanation:

For 2 events to be independent,

P(A and B) = P(A) * P(B)

IF NOT EQUAL, then they are dependent events.

P(A and B) = 0.52 (given), also

P(A) * P(B) = 0.73*0.61=0.4453

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4 years ago

A circle with radius of 1 cm sits inside a 3 cm x 4 cm rectangle.

White raven [17]

The area of shaded-region is 8.86 cm^2

Step-by-step explanation:

We can see that there is a circle and a triangle in the given figure

In order too find the area of shaded region, we have to find the area of rectangle and circle first. The area of the shaded region will be obtained by subtracting the area of circle from the area of rectangle.

So,

Area of circle:

Radius = r = 1 cm

So,

$A_c = \pi r^2\\= 3.14 * (1)^2\\= 3.14*1\\= 3.14\ cm^2$

Area of rectangle:

Length of rectangle = l = 4 cm

Width of rectangle = w = 3 cm

So,

$A_r = l*w\\= 4 *3\\=12 cm^2$

Now,

$Area\ of\ shaded-region = A_r - A_c\\= 12 - 3.14\\=8.86\ cm^2$

The area of shaded-region is 8.86 cm^2

Keywords: Area, shaded regions

Learn more about area at:

#LearnwithBrainly

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3 years ago

I need some help! In direct variation, as y increases, x decreases. True or false

MrMuchimi

I’m pretty sure that’s false-

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3 years ago