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wlad13 [49]
3 years ago
9

How many rotation symmetries does a five-pointed star have? Please show work!!!!!!

Mathematics
2 answers:
yaroslaw [1]3 years ago
6 0

Answer:

4 rotational symmetries for 5 pointed star.

Step-by-step explanation:

To find : How many rotation symmetries does a five-pointed star have?

Solution :

The number of times a shape can be rotated and look the same within one full 360° rotation is called the order of the rotational symmetry, and the angle at which it can be rotated to look the same is called the angle of rotation.

Yes, a 5-point star has rotational symmetry.

A 5-point star is a two-dimensional polygon in the shape of a star with five points, or tips.

The number of rotation is given by,

n=\frac{360}{5}

n=72^\circ

Therefore, 4 rotational symmetries for 5 pointed star.

VikaD [51]3 years ago
3 0
What do you mean "how many"? Like how many different rotations can you do and it'll be the same or just symmetries in general?
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Which statement describes whether a right triangle can be formed using one side length from each of these squares?
balu736 [363]

Answer:

Step-by-step explanation:

The area of the given squares are

Area = 64 in

Area = 225 in

Area = 289 in

The length of each side of a square is determined by finding the square root of its area. For the first square, the length of its side is √64 = 8inches. For the second square, the length of its side is √225 = 15inches. For the third square, the length of its side is √289 = 17inches.

For a right angle triangle to be formed, Pythagorean theorem must be obeyed. Sum of the square of the smaller sides must equal the square of the longer side. Therefore,

8² + 15² = 17²

289 = 289

Therefore, the correct statement is

Yes, a right triangle can be formed because the sum of the areas of the two smaller squares equals the area of the largest square

4 0
3 years ago
I don’t know how to do this. Can someone help?!
diamong [38]

Answer:

The area is 16.62

Step-by-step explanation:

The expression you use is pi x r squared. which is 3.14 x 2.3 x 2

4 0
3 years ago
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vredina [299]

Answer:

x=25

Step-by-step explanation:

they are supplementary and adjacent, thus you do 4x-3+3x+8=180, simplify and get 7x+5=180, subtract 5 from 180 which is 175, then ending up with 7x=175 and 175/7 is 25.

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2 years ago
What is the slope of the graph of y=3x-1
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What is value of x in the equation(x+ 4)^5 =3125
olga_2 [115]
(X+4)^5=3125
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3 years ago
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