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Jobisdone [24]
3 years ago
8

In the figure below, DBE is the result of a dilation of ABC with point B as the center of dilation. Which statement best uses th

is information to explain why the AA criterion can be used to prove ABC ~ DBE ?

Mathematics
2 answers:
Blababa [14]3 years ago
7 0

Answer:

B i think

Step-by-step explanation:

lilavasa [31]3 years ago
4 0

Answer: the 4

Step-by-step explanation:

You might be interested in
Consider the case of a triangle with sides 5, 12, and the angle between them 90°.
Daniel [21]

Answer:

a) Applying Pithagoras Theorem

b) Trigonometric relations

c) No we can not

d) No we can not

e) See step-by-step explanation

f) See step-by-step-explanation

Step-by-step explanation:

a) The easiest method for calculating the missing side is applying Pithagoras Theorem

c²  =  a²  +  b²

c²  =  (5)²  +  (12)²      ⇒  c²  = 25 + 144    ⇒ c²  =  169    ⇒  c  = 13

b) The easiest method to find the missing angles, is to calculate the sin∠ and then look for arcsin fuction in tables.

sin ∠α = 5/13    sin ∠α = 0.3846    ⇒      arcsin (0.3846 )   α  = 23⁰

Now we can either get the other angle subtracting 180 - 90 - 23 = 67⁰

Or calculating sinβ = 12 /13    sinβ = 0.9230  arcsin(0.9230)   β = 67⁰

c) The law of cosines should not be applied to right triangles, in fact for instance in our particular case we have:

Question a)

c²  = a² + b² - 2*a*b*cos90⁰   (law of cosines ) but cos 90⁰ = 0

then c²  = a² + b² which is the expression for theorem of Pithagoras

In case you look for calculating the missing angles

c²  = a²  +  b²  - 2*5*13*cos α

169 = 25  +  144 - 2*5*13* cos α

As you can see 169 - 25 - 144 = 0

Then we can not  apply law of cosine in right triangles, we shoul apply trigonometric relations and Pithagoras theorem, and as we saw you can get the expression of Pithagoras theorem from cosine law

c²  =  a²  +  b²  - 2*a*b*cos∠90°    cos ∠ 90°  = 0

Then     c²  =  a²  +  b²

3 0
3 years ago
LOOK AT PICTURE, THEN ANWSER QUESTION, WHOEVER IS CORRECT I WILL MARK BRAINIEST:)
gregori [183]

Answer:

c is the correct answer

5 0
2 years ago
Which method could be used to factor 4x^2-50
IrinaVladis [17]
Take the 4 out to get 4(x^2-12.5)
3 0
3 years ago
A square inch is the area covered by a square whose sides are 1 inch long. <br> true or false?
iragen [17]

Answer:

True

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Help pls asap!!!!!!!!!!!!!!!!!!!!
yawa3891 [41]
Hello!

We can put the x values in and see if we get y

Option 1:
Set A: y = 4x - 2

Do the first values

y = 4(-1) - 2

y = -4 - 2

y = -6

Look at the next one to be sure

y = 4(1) - 2

y = 4 - 2

y = 2

So the set A equation is correct we can look at set be now

y = x + 4

y = -5 + 4

y = -1

Try the next one to be sure

y = -2 + 4

y = 2

So the set B equation is also correct

The answer is the first one

Hope this helps!
7 0
3 years ago
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