Which shape does not have a rotational symmetry?

Mathematics

2 answers:

guapka [62]3 years ago

8 0

Answer:

Trapezoid

Step-by-step explanation: Only a 360 rotation will make the shape appear the same again.

melamori03 [73]3 years ago

3 0

Answer:

A: trapezoid

Step-by-step explanation:

The answer is a trapezoid because it is not even symmetric.

You might be interested in

A retail store buys items from the manufacturer and then marks up the price 70%. During a sale, prices are discounted 20%. The s

sweet-ann [11.9K]

The store makes a 50% profit. Hope it helps :)

5 0

3 years ago

Read 2 more answers

I really need help with this Triangle problem.

julia-pushkina [17]

Answer:

x = 10

y = 20

Step-by-step explanation:

$\tan \: 30 \degree = \frac{x}{10 \sqrt{3} } \\ \\ \frac{1}{ \sqrt{3} } = \frac{x}{10 \sqrt{3} } \\ \\ \sqrt{3} x = 10 \sqrt{3} \\ \\ x = \frac{10 \sqrt{3} }{ \sqrt{3} } \\ \\ x = 10 \\ \\ \cos 30 \degree = \frac{10 \sqrt{3} }{y} \\ \\ \frac{ \sqrt{3} }{2} = \frac{10 \sqrt{3} }{y} \\ \\ y = 10 \sqrt{3} \times \frac{2}{ \sqrt{3} } \\ \\ y = 10 \times 2 \\ \\ y = 20$

4 0

3 years ago

PLEASE HELP SOON. Answer any amount.

LiRa [457]

No.5=1/3x=21
So x is twenty one21

6 0

3 years ago

The point (-3/5,y) in the third quadrant corresponds to angle θ on the unit circle.

romanna [79]

Sec(theta) = 1 / cos (theta) = hypotenuse / x -coordinate

hypotenuse = 1 (because it is the radius of the unit circle)

sec (theta) = 1 / (-3/5) = - 5/3

cot (theta) = 1 / tan(theta) = x-coordinate / y - coordinate

cot (theta) = -3/5 / y

y^2 + (-3/5)^2 = 1 => y^2 = 1 - 9/25 = 16/25 = y = +/- 4/5

Third quadrant => y = -4/5

=> cot (theta) = (-3/5) / (-4/5) = 3/4

7 0

3 years ago

Please help me I need help

snow_tiger [21]

d = 16.76 inches

Step-by-step explanation:

We can extend the definition of the Pythagorean theorem to 3-dimensions:

$d = \sqrt{ {x}^{2} + {y}^{2} + {z}^{2} }$