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iren [92.7K]
3 years ago
12

Which statements about the relationship between the two triangles below are true? Check all that apply. Triangle A C D. Angle D

is 60 degrees and angle A is 74.9 degrees. Triangle R S T. Angle R is 74.9 degrees and angle S is 45.1 degrees.
Mathematics
1 answer:
Bezzdna [24]3 years ago
5 0

Answer:

Triangles are similar using AAA rule of similarity.

Step-by-step explanation:

Let's take triangle ACD. Where <D =60 degrees. <A =74.9 degrees and let's find <C using angle sum property of a triangle.

Please remember the sum of interior angle of a triangle is 180 degrees.

So, m<D= 180-60-74.9 =45.1 degrees.

Other triangle RST has the two angles as 74.9 degrees and 45.1 degrees.

So, third angle <T= 180-74.9-45.1= 60 degrees.

If we see the angles of a triangle, both has same angle measures.

That's <A= <R

<C= <S

<D= <T

So, the triangles are similar using AAA rule of similarity.

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tankabanditka [31]
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(3c+4)       9
--------- = -------
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(3c+4)       3
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5(3c+4) = 20*3   divide both sides by 5

3c+4=4*3

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for d you can writing 

(2d-3)       9
--------- = ------
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(2d-3)       3
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5(2d-3) = 12*3

10d -15 = 36

10d = 51

d = 51/10

d = 5,1

hope helped 

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