I need help figuring out these right triangle whether its cos,sin,tan...

- pokemon23

I need help figuring out these right triangle whether its cos,sin,tan...

- chestercat

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- anonymous

SOH-CAH-TOA

- pokemon23

|dw:1351054383279:dw|

- anonymous

Sin = Opposite/Hypotenuse
Cos = Adjacent/Hypotenuse
Tan = Opposite/Adjacent

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## More answers

- pokemon23

I know that but I'm not sure I know x=opposite and 50 is adj

- anonymous

solve for the other angle

- anonymous

you have the corner angle as 54 degrees?

- pokemon23

in this case is this a tan?

- pokemon23

Tan(36)*41

- anonymous

|dw:1351054517099:dw|

- anonymous

correct?

- anonymous

|dw:1351054589727:dw|

- anonymous

correct?

- anonymous

You there?

- anonymous

|dw:1351054690061:dw|

- pokemon23

so? i did it correctly?

- anonymous

So Tangent = Adjacent over Opposite

- anonymous

understand?

- pokemon23

so x=64.35

- pokemon23

but its say nearest centimeter

- anonymous

Messed that up sorry.
It's going to be tan(54) = x/50

- anonymous

so solve for that.

- anonymous

Tell me:
Tan(54) = ?

- pokemon23

1.37638192

- anonymous

now solve using SOHCAHTOA

- anonymous

so tan(54) = x/50

- anonymous

so 1.376 = x/50
x = ?

- pokemon23

I got 68.81

- anonymous

correct

- anonymous

round to nearest cm

- pokemon23

which i 68.80 if im right

- anonymous

whole centimeter bud

- anonymous

so if you have 65.36 centimeters, rounding to 65.4 isn't rounding to the nearest centimeter, that would be millimeter.

- pokemon23

facepalm..........

- anonymous

you have to round to the nearest centimeter which would be 69

- anonymous

understand?

- pokemon23

so just 69.

- anonymous

should be

- anonymous

but do you understand why?

- pokemon23

can you explain to the nearest centimeter.

- anonymous

well if you have 66.74 centimeters that means you have 66 WHOLE centimeters and .74 of a centimeter correct?

- anonymous

so why would you round to 66.7 centimeters?
You would still have 66 centimeters and .7 of a centimeter

- anonymous

Instead, you round to the next WHOLE centimeter which is 67,
make sense?

- pokemon23

because of third digit is higher than 5 it raises the number right.

- anonymous

yes
5+ = round up
4- = round down

- anonymous

so round these to the nearest centimeter for me:
55.34 = ?
57.49 = ?
73.50 = ?
110.2 = ?

- pokemon23

kk

- pokemon23

55
57
74
110

- anonymous

correct :)

- pokemon23

I think I got them all wrong T_T

- pokemon23

oh.

- anonymous

no you were all right

- pokemon23

thank you :) for the help. your help me clear out my struggle.

- anonymous

no problem, have a good day.

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