How many lines of symmetry does a circle have? What point do all lines of symmetry for a given circle have in common?

1 answer:

4 0

A circle has infinit lines of symmetry. They pass through the centre of the circle and are the circle's diameter. Hope this helps! (:

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Suppose two adjacent endpoint of a rotated square are located at (-4, -6) and (5, -1) on the coordinates axes. What is the lengt

Rufina [12.5K]

To find the length of the side of the square, we just need to find the distance between the two endpoints. This problem can quickly be solved by using the distance formula, but for those who are not familiar with it, we can simply solve it by analyzing a triangle.

Take a look at the diagram below. We are interested in x. To find this we have created a right triangle. The horizontal component is just the distance between the x coordinates of the two points while the vertical component is the distance between the y coordinates.

The horizontal component is 9 and the vertical component is 5. We can now get x by using the pythagorean theorem:

$x^{2}= 9^{2} + 5^{2} =81+25=106$
$x= \sqrt{106}$ which is approximately equal to 10.30 units.

ANSWER: The length of the side of the square measures 10.30 units.

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3 years ago

which of the following side lengths can form a triangle. A.10,16,&30 B.11,14,&26. C.41,51,&61. D.100,200,&600.

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C is the correct answer. :)

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3 years ago

VARVARA [1.3K]

I think the 2nd one I'm not really sure

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4 years ago

Please help me solve this

Alecsey [184]

answer:

x = -48 is the answer

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3 years ago

Read 2 more answers

Determine the x- and y-intercepts of the linear equation. Type a numerical answer in the space provided. Type the x-intercept fi

Gnom [1K]

3, - 3

To find the intercepts

let x = 0, in the equation for y- intercept and y = 0 for the x- intercept

x = 0 → - y = 3 ⇒ y = - 3 ⇒ (0, -3) is y- intercept

y = 0 → x = 3 ⇒ (3 , 0) is the x- intercept

that is 3, - 3

7 0

3 years ago