The picture shows a triangular island:
A right triangle is shown with an acute angle equal to 65 degrees. The length of the side of the triangle opposite to the acute angle is f. The length of the side of the triangle adjacent to the acute angle is d. The length of the hypotenuse is e.
Which expression shows the value of e?
f sin 65°
f cos 65°
d over cos 65 degrees
d over sin 65 degrees
Stacey Warren - Expert brainly.com
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im not sure.. i moved to a new school so i havnt really learned this yet..
We are looking for e which is the length of the hypotenuse.
Look at the trig ratios that I posted and choose either one which has the word "hypotenuse" in its denominator.
in order to find the hypotenuse i am going to need to find either d or f, correct?
im thinking i will be needing to do 2 equations really. one to find f and after plug in f's value into the equation to find the hypotenuse...let me know if im wrong
>>in order to find the hypotenuse i am going to need to find either d or f, correct?
I don't know because I am not thinking about the problem in that way.
If you would look at the table of right triangle trig ratios and select one that has hypotenuse in it, that would be great.
We have to rewrite one of those ratios and solve for e.
Okay, then pick one of them.
We won't select the tangent because it is the ratio of the opposite leg to the adjacent leg and does not directly use the hypotenuse e in its ratio.
so i put in sin 65= opposite leg/ hyp
sin 65= opposite leg/ hyp
sin = F/E where F is the opposite leg and E is the hypotenuse.
The next step is to solve for E and see if that is one of the options.
Is F divided by sin(65) one of the options for what E equals?
i figured it out...wrong equation in the first place..needs to be cos65 = d/e. which gives you e = D / Cos65..answer c