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Sidana [21]
3 years ago
9

If the smallest angle of rotation for a regular polygon is 18°, how many sides does polygon have?

Mathematics
3 answers:
nlexa [21]3 years ago
5 0

Answer:

10 sure️️️️️️️️ show to your teacher which class do you raed?

Elanso [62]3 years ago
4 0

Answer:

<h2>C.  20 </h2><h2></h2><h2></h2>

Step-by-step explanation:

given:

exterior angle = 18°

to find the number of sides of a polygon:

the formula would be:

<u>360 </u> =  exterior angle

 n

<u>360 </u> =  18

 n

n = 360/18

n = 20

therefore, the number of sides of a polygon is 20

Jay NOOB2 years ago
0 0

Answer: 20

360/18 = 20

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I suck at math I need help
GaryK [48]

Answer:

b=74

Step-by-step explanation:

You just gotta use sum of angles in a triangle and sum of angles on a straight line.

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3 years ago
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Can someone please help me? Im stuck
julsineya [31]

Step-by-step explanation:

a)

82+OCE=90°{ tangent}

0CE=8°

OCE=OEC (base angle of isosceles triangle r equal}

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a=180-16

a=164°

b)d+BEC=180°

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BEO=BEC-OEC

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b=114°

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2 years ago
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if one man ate 2/3 part of the Apple then anotherman ate 4/10 part ofthe Apple thenwhat partof the Apple did they ate altogether
poizon [28]

Step-by-step explanation:

Sum =2/3+4/10

=16/15

=1+1/15

Then

It's unreal

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6 0
3 years ago
Someone help me out with this
anygoal [31]
Answer: x = 10

Explanation: The bottom left angle is 90 degrees because of the symbol. ( Make sure you know this for future problems.) The whole triangle needs to add up to 180. This isn’t the right way to solve this kind of problem but I know how to solve it using this way and I know the at 10 is the right answer. The other two angles need to add up to 90 because 90 + 90 = 180. So basically I just substituted the same number into x until I added both outcomes and got 90. I hope you understand that cause I don’t really know how to explain it well. Let me try and show you.

3(x)+5 6(x)-5

Now you have to plug in the same number for x until both numbers add to ninety.

3(5)+5 6(5)-5.

( 5 isn’t the right number for x this is just an example. )

You end up with 20 for the first one, and 25 for the second one. 20 + 25 = 45 and 90 + 45 is only 135. So this means that 5 isn’t the right answer and you need to substitute a higher number in for x.

3(10)+5 6(10)-5

( This is the right setup. )

You end up with 35 for the first one and 55 for the second one after you distribute and solve. Now you have 35 and 55. 35 + 55 = 90 and 90 + 90 = 180. This is how you know that you are right. I hope this helps. :)
8 0
3 years ago
A baker purchased 12 lb of wheat flour and 15 lb of rye flour for a total cost of $18.30. A second purchase at the same prices,
vivado [14]
12w+15r=18.30 /*2
15w+10r=16.75 /*3

24w+30r=36.60, subtract this equation from the other one
45w+30r=50.25

21w=13.65
w=13.65/21
w=0.65 is a cost per pound for wheat flour

From the first equation we have
r=(18.30-12w)/15
r=(18.30-12*0.65)/15
r=0.70 is a cost per pound for rye flour
3 0
3 years ago
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