Are all diagonals also lines of symmetry for any given polyhon

Answers

Answer 1

Answer: the diagonals arent a line of symmetry at all

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A merry-go-round has a radius of 10 ft. To the nearest tenth of a foot, what distance does the merry-go-round cover when it rotates through an angle of 72°?For my first try, I got 62.9 as my answer, and it was marked wrong. I did this a second time, and got 12.6. I would like to check with anyone else to see if I got the answer right.

The answers for this question were:

62.9, 12.6, 25.1, or 125.7

Answers

Answer:

12.6

Step-by-step explanation:

The distance covered by the merry-go-round if makes a complete circle (360°) is its circumference:

circumference = 2*π*radius = 2*π*10 = 62.8 ft

This distance corresponds to 360°, for 72°:

62.8 ft / x ft = 360° / 72°

x = (72/360)*62.8

x = 12.6 ft

Yes, the correct answer is 12.6 ft.

Using the formula of arc length, that is
s = rθ
where s = arc length, r = radius, θ = angle (unit must be in radian)
With r = 10 ft and θ = 72 deg ( π/180 deg) = 1.26 rad,
s = (10)(1.26) = 12.6 ft

Please 20 points like rn 5 mins left on test

Answers

Answer: counterclockwise rotation of 90° and a reflection over y axis

Step-by-step explanation:

In the equation Q – 12 = 89, what is the value of Q

Answers

The answer is 101 because you add 89 and 12

Q-12=89 if you add 12 to 89 you get 101 and you cant divide 101 by Q because Q=1Q and you would just get 101 so i guess this is right

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Find the distance between the points (1, 2) and -3, 4).

Answers

Answer:

2√5

Step-by-step explanation:

Which inequality models this situation? The time between two trains must be greater than 37 minutes.

A.
t < 37

B.
37 > t

C.
37 – t = 0

D.
t > 37

Answers

The inequality t > 37 models the equation correctly, in which it is stated that the time between two trains must be more than 37 minutes. Here, t represents the time between the two trains.

Answer:

The answer would be A

Step-by-step explanation:

Write the equation of the line that passes through the point (-3, -1) with a slope of -2/3.

Answers

Hello,

y+1=-2/3(x+3)
or y=-2/3 x -3

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