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3 years ago

Which of the following statements is true only if triangles EFI and GFH are similar?

Mathematics

2 answers:

s344n2d4d5 [400]3 years ago

7 0

Answer:

(some one already told the answer-)

Step-by-step explanation:

Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion . In other words, similar triangles are the same shape, but not necessarily the same size.

The triangles are congruent if, in addition to this, their corresponding sides are of equal length.

Cerrena [4.2K]3 years ago

5 0

Answer:

Lines EI and HG are parallel

plz like and vote 5 star if answer is correct, if not still do it as it might help someone somehow

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Answer:

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Step-by-step explanation:

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What is the value of x? A.39 B.41 C.26 D.17

mojhsa [17]

Answer:

The answer is B.

Step-by-step explanation:

You have to use Pythogorean Theorem, c² = a² + b² where c is the hypotenuse and a,b is the side lengths :

${c}^{2} = {a}^{2} + {b}^{2}$

Let a = 40,

Let b = 9,

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${c}^{2} = 1600 + 81$

${c}^{2} = 1681$

$c = \sqrt{1681}$

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*Take note, hypotenuse will always be the longest length among the 3 lengths.

*Pythogorean Theorem can only applied in a right-angle triangle.

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3 years ago

What's the difference between -40ft and 3000ft

Vladimir79 [104]

Answer:

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3 years ago

If angle X is an acute angle with tan X = 8/7, what is the value of sec X?

iren [92.7K]

Answer: $\frac{\sqrt{113}}{7}$

Step-by-step explanation:

As X is an acute angle, all 6 trigonometric functions with an argument of X are positive.

Using the identity $1+\tan^{2} X=\sec^{2} X$ ,

$1+\left(\frac{8}{7} \right)^{2}=\sec^{2} X\\\\\sec^{2} X=\frac{113}{49}\\\\\therefore \sec X=\boxed{\frac{\sqrt{113}}{7}}$

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