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Keith_Richards [23]
3 years ago
9

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

Mathematics
1 answer:
Lesechka [4]3 years ago
3 0

Answer:

20

Step-by-step explanation:

360÷18=20

thus ,the polygon have 20 sides

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How many different books did the children read
Alex777 [14]

Answer:

16 books

Step-by-step explanation:

if Sandra read 5 books and Deacon read 6 and Breanna read 7 and they all one same book, then that means sandra read 4 different books then Deacon and Breanna. Deacon read 5 different books then Sandra and Breanna. Breanna read 6 different books then Deacon and Sandra.

So Sandras 4 books plus Deacons 5 books plus Breannas 6 books equals up to 15 but, now you need to add the one book they all read which makes the answer 16.


(Hopes this helps)

3 0
3 years ago
Help pleaseeee and thank yaaaa
Serhud [2]

Answer:

1 1

Step-by-step explanation:

because of where the line is

6 0
3 years ago
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Calculate the size of angle ABC.
Zina [86]

Answer:

98

Step-by-step explanation:

Add them all up. 60+20= 80+18 = 98.

4 0
2 years ago
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Convert the measurement as indicated.<br><br> 26ft= _ yd _ ft
Yakvenalex [24]
26ft(yd/3ft)

8yd+2yd/3

8yd+(2yd/3)(3ft/yd)

8yd+2ft

8yd 2ft
5 0
2 years ago
Read 2 more answers
If the endpoints of the diameter of a circle are (8, −6) and (4, −2), what is the standard form equation of the circle?
Gennadij [26K]
We do the midpoint formula to find the center of the circle to get the left side of the equation.

Midpoint = [(X₁ + X₂) / 2 , (Y₁ + Y₂) / 2] 

Now plug in:

[(8 + 4) / 2 , (- 6 - 2) / 2]
(12 / 2 , - 8 / 2)
(6, - 4)

The center of the circle is (6, -4)

Now we plug it into the equation of a circle:

(x - h)² + (y - k)² = r² where (h, k) is the center of the circle and r is the radius. 

(x - 6)² + (y + 4)² = r² is the left side of the equation. This will eliminate options A and C

Now we do the distance formula using the center and an endpoint to get the radius. The formula for distance is:

√((X₂ - X₁)² + (Y₂ - Y₁)²)

We plug in using either of the endpoints. 

√((4 - 6)² + (- 2 - (- 4))²)
√((-2)² + 2²)
√(4 + 4)
√8

√8 is your radius

(√8)² = 8

Your correct answer is (x - 6)² + (y + 4)² = 8, Option D
3 0
3 years ago
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