Question

Will medal and fan for explination
Also don't get mad if I am not understanding, I dont understand this
Use △DEF, shown below, to answer the question that follows:

Triangle DEF where angle E is a right angle. DE measures 55. EF measures x. Angle D measures 49 degrees.

What is the value of x rounded to the nearest hundredth? Type the numeric answer only in the box below.

Answer 1

@Mehek14 @rebeccaxhawaii

Answer 2

Do you know the sin cos and tan equations?

you need to know those to answer this

Answer 3

Yes SOHCAHTOA

Answer 4

ok so

for the angle 49 which function can be got from x and 55?

Answer 5

I'm quite sure which to use and how do you tell what to use?

Answer 6

the 3 sides are 'opposite', 'adjacent' and 'hypotenuse'

for the angle 49

which is the description of the side x?
which is the description of the side 55

Answer 7

for x = opposite
for 55= adjacent

Answer 8

Good

so which of the functions (sin cos or tan) uses Opposite and adjacent?

Answer 9

Tangent

Answer 10

OK

so you have done the hard part!
Tan 49 = x/55

so work out x from that :-)

Answer 11

Ok give me a min

Answer 12

63.27?

Answer 13

Good - that is correct
and it is round to nearest hundredth as the question asks

Answer 14

Wouldn't it still be 63.27 because after 7 is a 0

Answer 15

yes - I said - you are correct

Answer 16

This is a redo, and it has the same question and that is what I put the first time

Answer 17

@MrNood

Answer 18

What are the 2 sides you have NOW (opp adj hyp)

Answer 19

I have DE as 55 and FE as 63.27

Answer 20

For the new diagram:
the 3 sides are 'opposite', 'adjacent' and 'hypotenuse'

for the angle 49

which is the description of the side x?
which is the description of the side 55

Answer 21

Umm... not sure how wouls the diagram change??

Answer 22

in the diagram I first answered you had x opposite

but the second diagram is different

which is the description of the side x?
which is the description of the side 55

Answer 23

Ok so the diagrams change, but I dont understand how they are different " but the second diagram is different"

Answer 24

@MrNood

Answer 25

just look at the angle 49

which side is opposite?
which side is adjacent
which side is hypotenuse

Answer 26

I think
x= opposite
55= adjacent
DF= hypothesis

Answer 27

Im sorry if I seem really dumb and ignorant I just really don't understand this

Answer 28

I am talking about the question 2 diagram you posted:



which side is adjacent
which side is hypotenuse