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MAXImum [283]
3 years ago
5

What is the smallest angle of rotational symmetry for a square?

Mathematics
2 answers:
nlexa [21]3 years ago
7 0
The smallest will be 90 degree
Gemiola [76]3 years ago
7 0

Answer:90

Step-by-step explanation:

i got it right on the test :) good luck

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3 years ago
Which of the following is a multiple of 5? A. 48 B. 532 C. 235 D. 17
abruzzese [7]
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7 0
3 years ago
Read 2 more answers
Evaluate cot870°.<br> 1. - sqrt3<br> 2. -1/sqrt3<br> 3. 1/sqrt3<br> 4. sqrt3
ivolga24 [154]

ANSWER

-\sqrt{3}

EXPLANATION

The given angle is 870°.

870°-360°-360°=150°

This means that:

870° is coterminal with 150°, hence its terminal side is in the second quadrant.

It makes an acute angle of 30° with the x-axis.

Note that cotangent is negative in the second quadrant,

Hence,

\cot(870 \degree)  =  \cot(150 \degree)  =  -  \cot(30 \degree)  =  -  \frac{1}{ \tan(30 \degree) }  =  - \sqrt{3}

The first option is correct.

3 0
3 years ago
B. During two years of college, a student earned $12,000. The second year she earned $500
Nana76 [90]

Answer:

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5 0
2 years ago
The interior angle of a regular polvgon is 9 times the size of its exterior angle
Thepotemich [5.8K]
<h3>Answer:   20 sides</h3>

==================================================

Work Shown:

x = exterior angle

9x = interior angle

interior + exterior = 180

9x+x = 180

10x = 180

x = 180/10

x = 18

n = number of sides

n = 360/x

n = 360/18

n = 20

There are <u>20</u> sides to the regular polygon.

Side notes:

  • The formula to determine n only works for regular polygons.
  • A polygon with 20 sides is known as an icosagon.
  • Any pair of adjacent interior and exterior angles are supplementary. They add to 180 degrees.
3 0
1 year ago
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