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Mathematics 12 Online
DanielRichter:

The sail of a boat is in the shape of a right triangle. Which expression shows the height, in meters, of the sail? The sail of a boat is a right triangle with an acute angle equal to 40 degrees and the side adjacent to the 40 degrees angle is 2 meters long.

Madiron:

crap i'm learning the same stuff and i know even know how help,well guess i'm off to another question

Madiron:

*how to help*

AZ:

Let's draw it out once again |dw:1615924083694:dw|

AZ:

It's very similar to your previous question How would you find x?

Madiron:

thre you go AZ the right person,i'm pretty sure s/he is smart

DanielRichter:

you need to use tangent

AZ:

Exactly! So remember \(\large \tan \theta = \dfrac{\text{opposite}}{\text{adjacent}}\) you have your angle and you have the adjacent side

AZ:

What would be the expression to find the opposite side We're not looking for the final answer here. We're looking for the expression. So all you have to do is multiply both sides by the adjacent side and you'll have your opposite side

AZ:

Does that make sense? And you can plug in your numbers

DanielRichter:

yeah thanks

AZ:

No problem! Glad I could help :)

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