1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
serg [7]
3 years ago
12

Why are circles so important in creating equilateral triangles

Mathematics
1 answer:
Daniel [21]3 years ago
6 0
Maybe because the diameter of the circle should equal each side length of te equilateral triangle 
You might be interested in
Please help!!!! Use the graph to complete the statement. O is the origin. Ry−axis ο Ry=x: (-1,2)
Fiesta28 [93]

Answer:  D. (-2, -1)

Step-by-step explanation:

Here we do two reflections to the point (-1, 2).

First, we do a reflection over the line x = y.  Remember that a reflection over a line keeps constant the distance between our point and the given line, so we have that for a pint (x, y), the reflection over the line y = x is:

Ry=x (x, y) = (y, x)

so for our point, we have:

Ry=x (-1, 2) = (2, -1)

Now we do a reflection over the y-axis, again, a reflection over a line keeps constant the distance between our point and the given line, so if we have a point (x,y) and we do a reflection over the y-axis, our new point will be:

Ry-axis (x,y) = (-x, y)

Then in our case:

Ry-axis (2, -1) = (-2, -1)

The correct option is D.

5 0
3 years ago
The temperature in the afternoon is -8°F. In the evening, the temperature is 6°F colder than in the afternoon.
Neporo4naja [7]

Answer:

-8-6

-8+6

6-(-8)

Step-by-step explanation:

5 0
3 years ago
Determine o valor dos termos desconhecidos nos triângulos abaixo:<br> HELPP
myrzilka [38]

Answer:

Option (B)

Step-by-step explanation:

By using the property of a triangle → " Sum of interior angles of a triangle is 180°"

Therefore, (4x - 40) + (x + 20) + x = 180°

(4x + x) + (-40 + 20) = 180°

5x - 20 = 180

5x = 180 + 20

5x = 200

x = 40

Therefore, value of x will be 40.

Option (B) will be the correct option.

5 0
3 years ago
Trigonometry help please? I need the three answers
zavuch27 [327]

Answer:

Both triangles are triangle rectangles, but the triangles are not similar.

Step-by-step explanation:

By the Pythagorean's theorem, we know that for a triangle rectangle the sum of the squares of the cathetus is equal to the square of the hypotenuse.

Where the cathetus are always the two sides of smaller length.

We also know that two figures are similar if all the correspondent sides are proportional to each other, this means that the figures have the same shape but different size.

First, for triangle A the measures of the sides are:

48, 55, 73

Here the two catheti are 48 and 55, and the hypotenuse is 73.

Then to answer the first question we need to try to apply the Pythagorean's theorem, we should have:

48^2 + 55^2 = 73^2

solving that we get:

5,329 = 5,329

This is true, thus triangle A is a triangle rectangle.

Now for triangle B the measures are: 36, 77 and 85.

So the catheti are 36 and 77, and the hypotenuse is 85

So to check if triangle B is a triangle rectangle the equation:

36^2 + 77^2 = 85^2

must be true, solving both sides we get:

7,225 = 7,225

This is true, so triangle B is a triangle rectangle.

Finally, to check if the figures are similar we need to compare the correspondent sides of both triangles, such that the quotient of correspondent sides must be always the same.

For the hypotenuses, if we compute:

(hypotenuse B)/(Hypotenuse A) we get:

85/73 = 1.16

Now if we do the same for the two smaller catheti we get:

36/48 = 0.75

The quotients are different, thus the triangles are not similar.

8 0
3 years ago
After the scale factor is applied to the dimensions of the rectangle shown, choose all that correctly give the new dimension. (C
Olegator [25]

Statements in option A and D are true

Step-by-step explanation:

Step 1 :

Length of the given rectangle = 10 cm

Width of the given rectangle = 4 cm

Step 2 :

A)

Apply scale factor of 3

New width is 4 * 3 = 12 cm

Hence the statement in option A is true

Step 3 :

B)

Scale factor = 4

New length is 10 * 4 = 40 cm

Hence option B is false

Step 4 :

C)

Scale factor = 2

New length is 10 * 2 = 20 cm

New width is 4 * 2 = 8 cm

New perimeter is 20+20+8+8 = 56 cm

Hence option C is false

Step 5 :

D)

Scale factor = 2

New length is 10 * 2 = 20 cm

New width is 4 * 2 = 8 cm

New area is 20*8 = 160 sq cm

Hence option D is true

8 0
3 years ago
Other questions:
  • Chritine sells boxes of cookies for $4 each. Rafeal sells boxes of cookies for $7 each. Each of them sold the same dollar amount
    15·1 answer
  • write the equation of the line that passes through the points 7, -4 and -1, 3 first and point-slope form and then in slope inter
    10·2 answers
  • n i g 5. When the mass of an object you determine which of the following I _ . . . - gazing the quantity of matter In the object
    15·1 answer
  • Evaluate 6|5 - c| + 2c when c = 6
    5·2 answers
  • I really need help on rate changes!!
    15·1 answer
  • Which would be the right one????
    10·1 answer
  • Will somebody please help me with my answer below???? i need it fast :)
    9·2 answers
  • I will mark you brainliest if you get the question right
    14·2 answers
  • Which statement is true about 7/10 and 2/6?
    10·1 answer
  • 6. Multiply: (x – 4)(x + 5)<br><br>​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!