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kompoz [17]
3 years ago
12

What is the exterior and interior angle of a 18 sided polygon

Mathematics
1 answer:
GREYUIT [131]3 years ago
3 0
Would assume the Polygon is an 18 sided regular polygon.

Exterior angle for regular polygon = 360/n      (Sum of angles of exterior angles = 360°)

where n = number of sides.

Exterior angle = 360 / 18 = 20

Exterior angle = 20°

Sum of exterior angle + Interior angle = 180°    (Both angles are on a straight line, so the sum is 180°)

Interior angle = 180° - 20°

Interior angle = <span>160°

</span>Hope this explains it.    
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What equation will give the perimeter of the figure? HELP HELP HELP
nata0808 [166]

Answer:

(2l + 2w) + (a + b + c)

Step-by-step explanation:

The formula for the perimeter of a rectangle is

P = 2l + 2w

so if you substitute, it becomes

P = 2(12) + 2(2)

= 24 + 4

= 28

For the perimeter of a triangle the correct formula would be

P = a + b + c

The missing side in the triangle is 3 because 15 - 12 is 3.

If you substitute, it becomes

P = 2 + 3 + 6

P = 11

If we add both perimeters together we get the full perimeter of the figure which is

28 + 11 = 39

I am not sure if you wanted the answer as well but just in case :)

4 0
3 years ago
Shane wrapped the kite with paper. How many square inches of paper did Shane use to cover the front and back? 45 POINTS
arsen [322]

Answer:

576

Step-by-step explanation:

First off, we can use the area of a kite formula, (D1*D2)/2 to get the area of one side of the kite, which is simplified to 18 * 32 : which gets us 288. But because we are looking for the area of the front and back side, we multiply 288 by 2- getting the final answer of <u>576</u>.

7 0
3 years ago
Read 2 more answers
A right rectanular prism has a length of 2 a width of 4 and a height of 5. How many unit cubes can fit in the prism
-Dominant- [34]

Answer:

40

Step-by-step explanation:

4 x 2 = 8 x 5

l x w x h

or

Bxh

7 0
2 years ago
Help please!!!!
yanalaym [24]
18  The 2 trapezia formed by midpoint are similar so we can write

19/24 = x / 19

x = 19^2 / 24 = 15.04 

19.   360 degrees . This is true for all polygons
6 0
3 years ago
This is hard........ help please?
anygoal [31]

Answer: C.

There are 215 total students in the band.

There are 27 seniors in the band.

The probability is found by dividing the number of seniors in the band by the TOTAL number of students in the band.

P(S|B) = 27/215 = 0.1255813953

You have to round off the answer too the nearest tenth.

P(S|B) = 0.13

6 0
3 years ago
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