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aev [14]
3 years ago
6

Triangle ABC undergoes a series of transformations to result in triangle DEF .

Mathematics
2 answers:
s344n2d4d5 [400]3 years ago
7 0

question 1 is congruent. 2 is not congruent and 3 is congruent

Mrrafil [7]3 years ago
6 0

Answer: 1) Congruent

2) Not congruent

3) Congruent

Step-by-step explanation:

We know that a rigid transformations preserves side-lengths and angle measures of a figure in such a way that the figure doesn't shrink or get enlarger. It creates congruent figures.

  • The three main rigid transformations are:

    a) reflections, b) rotations, c) translations

On the other hand a dilation changes the size of the image when the scale factor is not equal to 1. It does not produces congruent images.

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2 years ago
A suspension bridge has two main towers of equal height. A visitor on a tour ship
Scilla [17]

Answer:

The Height of the tower is 188.67 ft

Step-by-step explanation:

Given as :

The angle of elevation to tower = 15°

The distance travel closer to tower the elevation changes to 42° = 497 ft

Now, Let the of height of tower = h  ft

The distance between 42°  and  foot of tower = x  ft

So, The distance between 15° and  foot of tower =  ( x + 497 )  ft

So, From figure :

<u>In Δ ABC </u>

Tan 42° = \frac{perpendicular}{base}

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Again :

<u>In Δ ABD </u>

Tan 15° = \frac{perpendicular}{base}

Or , Tan 15° = \frac{AB}{BD}

Or,  0.267 = \frac{h}{( x + 497 )}

Or,  h = ( x + 497 ) × 0.267

So, from above two eq  :

     0.900 x =  ( x + 497 ) × 0.267  

Or, 0.900 x - 0.267 x =  497  × 0.267  

So, 0.633 x = 132.699

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So, The height of tower = h = 0.900 × 209.63

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Hence The Height of the tower is 188.67 ft    Answer

3 0
2 years ago
How is adding and subtracting decimals different from adding and subtracting whole numbers?
Monica [59]
It isn't different, it is very much the same
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2 years ago
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Step-by-step explanation:

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