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sesenic [268]
3 years ago
5

What is the value of xa. 25b. 12c. 7 d. 5​

Mathematics
2 answers:
tia_tia [17]3 years ago
8 0
The answer is 5 because a^2 + b^2 = c^2
Ipatiy [6.2K]3 years ago
4 0
4 times 3 is 12 so the answer will be 12 I think
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Answer:

3) Option C is correct.

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Step-by-step explanation:

Triangle BDE is dilated by a scale factor of 2 to obtain triangle BAC.

Dilation by a scale factor of 2 means that all the sides of triangle BAC are twice as much as the corresponding sides of triangle BDE.

And triangle BDE is similar to triangle BAC.

It also means that the corresponding angles are necessarily equal.

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Cos ∠D = (3/3.61)

Cos ∠A can also be similarly obtained from trigonometric relations as (adj/hyp)

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Hyp = hypotenuse side = CA = 7.22

Cos ∠A = (6/7.22)

Since the two angles are corresponding angles of two similar triangles,

We can easily see that

Cos ∠D = Cos ∠A

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Answer:

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Step-by-step explanation:

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