All categories

3 years ago

Find the number of sides of a regular polygon if one interior angle is 60 degrees

Mathematics

2 answers:

Vikentia [17]3 years ago

8 0

The answer would be 3.

Hope this helps!

dlinn [17]3 years ago

5 0

Answer:

3 sides

Step-by-step explanation:

The sum of the exterior angles add up to 360°:

The exterior angles of this shape would be 180 - 60 = 120:

So the number of sides is 360 ÷ 120 = 3 sides

You might be interested in

A bag contains 6 red apples and 5 yellow apples. 3 apples are selected at random. Find the probability of selecting 1 red apple

tester [92]

Answer: The required probability of selecting 1 red apple and 2 yellow apples is 36.36%.

Step-by-step explanation: We are given that a bag contains 6 red apples and 5 yellow apples out of which 3 apples are selected at random.

We are to find the probability of selecting 1 red apple and 2 yellow apples.

Let S denote the sample space for selecting 3 apples from the bag and let A denote the event of selecting 1 red apple and 2 yellow apples.

Then, we have

$n(S)=^{6+5}C_3=^{11}C_3=\dfrac{11!}{3!(11-3)!}=\dfrac{11\times10\times9\times8!}{3\times2\times1\times8!}=165,\\\\\\n(A)\\\\\\=^6C_1\times^5C_2\\\\\\=\dfrac{6!}{1!(6-1)!}\times\dfrac{5!}{2!(5-2)!}\\\\\\=\dfrac{6\times5!}{1\times5!}\times\dfrac{5\times4\times3!}{2\times1\times3!}\\\\\\=6\times5\times2\\\\=60.$

Therefore, the probability of event A is given by

$P(A)=\dfrac{n(A)}{n(S)}=\dfrac{60}{165}=\dfrac{4}{11}\times100\%=36.36\%.$

Thus, the required probability of selecting 1 red apple and 2 yellow apples is 36.36%.

4 0

3 years ago

HURRY WILL MARK BRAINLESS <br>Which expression is equivalent to ပါ။ (C) - -

OleMash [197]

First to Answer

Answer:

The correct option is the third option. -2 1/4 / -2/3 = 3 3/8

-9/4 / -2/3 = 3 3/8

7 0

3 years ago

If Chloe is 22 her sister Bethany is 23 but there mum is 21 how are they her children

gayaneshka [121]

Answer:

Step-by-step explanation:

I think it three sometimes it's a trick question

so its not number one or 2 because how are they her children so the answer is 3

3 0

2 years ago

A line segment has (three one two zero) endpoints

Masja [62]

A line segment has (three one two zero) endpoints

The answer is 2

4 0

3 years ago

Read 2 more answers

2/3 divided by 11/15

NNADVOKAT [17]

You need to implement the process of "flip-flop" and multiply which is where you flip the second fraction and multiply.

$\frac{2}{3}$ ÷ $\frac{11}{15}$ ⇒ $\frac{2}{3}$ × $\frac{15}{11}$

Now you multiply across. 2×15=30 and 3×11=33

So now it is $\frac{30}{33}$

-----------------------------------------------------------
To reduce to the lowest terms, find the GCF common factor

The GCF is 3

Divide both the numerator and denominator by 3

$\frac{30}{33}$ ÷ $\frac{3}{3}$ = $\frac{10}{11}$

Answer: $\frac{10}{11}$

7 0

3 years ago