OpenStudy (darkbluechocobo):

Help with solving right triangles

2 years ago
OpenStudy (darkbluechocobo):

Solve for the specified value of the following right triangle. Round your answer to the nearest hundredth. If A = 34° and b = 22m, find c.

2 years ago
OpenStudy (darkbluechocobo):

|dw:1421718172862:dw|

2 years ago
OpenStudy (darkbluechocobo):

Aha i tried my best at making a triangle

2 years ago
OpenStudy (studygurl14):

Use a trigonometric ratio. Remember that sinA = opp/hyp, cosA = adj/hyp, tanA=opp/adj If you know the measure of A, and you know one side length, and you want to find the hypotenuse.....

2 years ago
OpenStudy (darkbluechocobo):

So for the way we are looking at it a is the opposite? and the adjacent is is b

2 years ago
OpenStudy (darkbluechocobo):

so should we use CosA then ?

2 years ago
OpenStudy (studygurl14):

Correct. CosA. plug in known values.

2 years ago
OpenStudy (studygurl14):

and solve for "hypo"

2 years ago
OpenStudy (studygurl14):

hypotenuse, haha

2 years ago
OpenStudy (darkbluechocobo):

so Cos(34)=22/c 22Cos(34)=c

2 years ago
OpenStudy (darkbluechocobo):

2 years ago
OpenStudy (studygurl14):

yep. Nice job. :)

2 years ago
OpenStudy (darkbluechocobo):

Thank you again :D

2 years ago
OpenStudy (darkbluechocobo):

@StudyGurl14 S: I did it this way, but I got all but one of them right

2 years ago
OpenStudy (darkbluechocobo):

The correct answer for this was 26.54

2 years ago
OpenStudy (darkbluechocobo):

@freckles

2 years ago
OpenStudy (freckles):

what's up

2 years ago
OpenStudy (freckles):

so Cos(34)=22/c c*cos(34)=22 c=22/cos(34)

2 years ago
OpenStudy (freckles):

26.54 is right

2 years ago
OpenStudy (darkbluechocobo):

so you divide instead of multiplying?

2 years ago
OpenStudy (freckles):

you just solved the equation incorrectly

2 years ago
OpenStudy (freckles):

cos(34)=22/c to solve for c I will first multiply by c on both sides c *cos(34)=22 then divide both sides by cos(34) to isolate the c

2 years ago
OpenStudy (freckles):

like you know how to solve something like 1/2=3/x right?

2 years ago
OpenStudy (darkbluechocobo):

so for this Solve for the specified value of the following right triangle. Round your answer to the nearest hundredth. If B = 55.33° and b = 12.34yd, find a. I used tan(b) because we had the opposite and we need to find the adjacent so would you do the same 12.34/tan(55.53)

2 years ago
OpenStudy (freckles):

|dw:1421721638980:dw| yes just had to see what the setup was

2 years ago