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3 years ago

For which shape is 180 degrees the smallest angle of rotational symmetry?

Mathematics

1 answer:

Anit [1.1K]3 years ago

5 0

Answer:

La simetría rotacional, es la propiedad que posee una forma cuando tiene el mismo aspecto después de aplicarle una rotación mediante un giro parcial. El grado de simetría rotacional de un objeto es el número de orientaciones distintas en las que se ve igual que en su posición inicial.1

Step-by-step explanation:

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Help!!!!!! Find x and y so the quadrilateral is a parallelogram.

iren [92.7K]

Answer:

Conclusion:

The value of x = 7

The value of y = 4

Step-by-step explanation:

Given

The parallelogram PQRS

We know that the diagonals of a parallelogram bisect each other.

Therefore,

RT = TP

Given RT = x and TP = 5x-28, so

x = 5x-28

5x = x+28

5x-x = 28

4x = 28

divide boh sides by 4

4x/4 = 28/4

x = 7

Thus, the value of x = 7

Similarly,

QT = TS

Given QT = 5y and TS = 2y+12, so

5y = 2y+12

5y-2y = 12

3y = 12

divide both sides by 3

3y/3 = 12/3

y = 4

Thus, the value of y = 4

Conclusion:

The value of x = 7

The value of y = 4

3 0

2 years ago

A drawing has a scale 1/4 in: 12ft. How long is 8ft?

allochka39001 [22]

If you use a proportion, you'll get:

$\frac{0.25}{12} = \frac{x}{8}$

Then, you use cross products:

$12x=0.25(8) \\ 12x=2$

Then, you algebraically solve x:

$12x=2 \\ \frac{12x}{12} = \frac{2}{12} \\ x= \frac{5}{3}$

The answer is 5/3 inches , or 1 5/13 inches, or 1.6 repeating.

4 0

3 years ago

What is the value of 3 divided my 64

Naddik [55]

3 divided by 64 is 0.046875

3 0

3 years ago

The figures are similar. Find x. The ratio of the perimeters is 7 : 10 how do I find x

Elena L [17]

7/10 = x/12 which mean you need to multiply each side by 12 to find x. So the answer would be X= 8.4

8 0

3 years ago

已知一个质点做变速直线运动的位移函数 s  3t 2  e2t , t为时间,则在时刻t  2处的速度和加速度分别为

Natasha2012 [34]

Answer:

can't understand language

6 0

3 years ago