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Alex73 [517]
3 years ago
7

A triangle is dilated by a scale factor of 1/5 and then rotated 90 clockwise about the origin. Why is the image similar to the p

re-image? Check all that apply.
Mathematics
2 answers:
Lyrx [107]3 years ago
8 0

Answer:

It is

C and E

Step-by-step explanation:

Llana [10]3 years ago
6 0

Answer:

C and E

Step-by-step explanation:

-The corresponding sides of the image are 5 times as long as those of the pre-image.

And- Neither the dilation nor the rotation change the shape of the triangle.

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Anyone know this?? it’s finding the sine of a triangle!!
LenKa [72]

Answer:

I'm not sure what you want me to answer from this, so I solved for every variable:

Angle A: 83°

Side b: 6.29

Side c: 5.8

Step-by-step explanation:

-----Angle A:

Since the sum of the interior angles of a triangle ALWAYS equal 180°, we can solve for angle A as follows:

A+51+46=180\\A+97=180\\A=83

-----Side b:

Here, we use the sin rule for finding sides, since we know all of the angles as well as one side:

\frac{a}{sin(A)} =\frac{b}{sin(B)} \\\frac{8}{sin(83)} =\frac{b}{sin(51)} \\8.06=\frac{b}{0.78} \\6.29=b

-----Side c:

\frac{a}{sin(A)} =\frac{c}{sin(C)} \\\frac{8}{sin(83)}=\frac{c}{sin(46)} \\8.06=\frac{c}{0.72} \\5.8=c

7 0
2 years ago
Read 2 more answers
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dezoksy [38]

Step-by-step explanation:

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8 0
2 years ago
Read 2 more answers
7: In the rhombus, m∠1=10x, m∠2=x + y, and m∠3= 5z. Find the values of x, y, and z.
malfutka [58]
Angles 1, 2, and 3 are all 90°.

10x = 90
.. x = 9

x +y = 90
.. y = 81

5z = 90
.. z = 18

The values of (x, y, z) are (9, 81, 18).

7 0
4 years ago
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Contact [7]

Answer:

c

Step-by-step explanation:

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5 0
3 years ago
What is the first step in solving for z in the equation 5z - 4 = 26
Andrei [34K]
You would 4 to both sides of the equation
3 0
3 years ago
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