Anyone know how to do this? And the answer? I need to know the length from A to B. C is 26 degrees
#cosine-sine and tangen
fleet coral
halcyon dockBOT
Anyone know how to do this? And the answer? I need to know the length from A to ...
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opaque pumice
Anyone know how to do this? And the answer? I need to know the length from A to ...
Considering you know two sides, you can just use Pythagoras' theorem.
fleet coral
Ok
fleet coral
Considering you know two sides, you can just use Pythagoras' theorem.
So 8.999cm right?
opaque pumice
So 8.999cm right?
No. Obviously, the side can't be greater than the hypotenuse.
fleet coral
No. Obviously, the side can't be greater than the hypotenuse.
I don’t know can you solve it I can’t find any other answer than this
opaque pumice
I don’t know can you solve it I can’t find any other answer than this
You just didn't apply it correctly. We have:
AB^2 + BC^2 = AC^2
So:
AB = √(AC^2 - BC^2)
fleet coral
You just didn't apply it correctly. We have:
AB^2 + BC^2 = AC^2
So:
AB = √(AC^2 ...
5cm?
Has to be
fleet coral
Idk do you know the answer?
fleet coral
I didn’t write but I used Kat+kat=hyp it’s wrong but I need the answer
opaque pumice
I didn’t write but I used Kat+kat=hyp it’s wrong but I need the answer
Why just add them?
As I told you above, we use Pythagoras' theorem:
AB^2 + BC^2 = AC^2
From here AB = √(AC^2 - BC^2). So, calculate it.
fleet coral
2.9816103031751148012063558405269
opaque pumice
Well, no need for so many decimals.
We are given numbers with two significant digits, so we also leave two. Thus, AB ≈ 3.0 cm.
opaque pumice
Yes.
opaque pumice
Well, we know an angle and an opposite side, and we need to find the adjacent side and the hypotenuse.
Which trigonometric functions should we use?
fleet coral
Well, we know an angle and an opposite side, and we need to find the adjacent si...
Cos right?
fleet coral
Well, we know an angle and an opposite side, and we need to find the adjacent si...
Sin (29.7) = 4/hypotenuse i don’t know how I use this
opaque pumice
Cos right?
No.
fleet coral
Is it 8cm?
opaque pumice
Sin (29.7) = 4/hypotenuse i don’t know how I use this
Well, we have sin(F) = ED/FD. So, you can express FD from here.
opaque pumice
Is it 8cm?
Well, FD is closer to 8.1 cm.
fleet coral
Well, FD is closer to 8.1 cm.
So the other one is 7,04cm
opaque pumice
So the other one is 7,04cm
Well, closer to 7.01 cm. Also, we should probably keep the same amount of significant digits, so just 7.0 cm.