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Mathematics 22 Online
OpenStudy (coexist2):

Short Answer: Solve the right triangle. a=70 degrees and 2nd a = 14; find B, b, and c. * Drawing attached in question.*

OpenStudy (mathmale):

Going to post the drawing? If not, sketch this right triangle yourself. Let A (capital letter) be the angle opposite side a (non-capital letter). Label B, b and c. Determine the best method (or methods): Law of Sines, Law of Cosines, Pythagorean Theorem, etc.

OpenStudy (mathmale):

Hint: The sum of all the interior angles of a triangle must be 180 degrees.

jhonyy9 (jhonyy9):

drawind attached to where ?

OpenStudy (coexist2):

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jhonyy9 (jhonyy9):

angle a = 70 degree side a = 14 do you know what say sin law for angle a for example ?

OpenStudy (coexist2):

i dont understand the sin law completely.

jhonyy9 (jhonyy9):

so the sin law say sin a = opposite side divide hypotenuse

jhonyy9 (jhonyy9):

using this you can calculi easy the length of c - yes ?

jhonyy9 (jhonyy9):

and using tan law for angle a so this say opposite side divide adjacent side do you can solve it now ?

jhonyy9 (jhonyy9):

so than you get c and b so using indifferent law sin or cos or tan or cot you can calculi the measure of angle B - ok ?

OpenStudy (coexist2):

i am lost

jhonyy9 (jhonyy9):

why this is very easy just try calculi it how i wrote there above step by step

OpenStudy (coexist2):

whats sin and tan and theres no numbers ??

OpenStudy (coexist2):

jhonyy9 (jhonyy9):

sin and tan are trigonomatric function sin mean sinus and tan mean tangent

OpenStudy (mathstudent55):

Since you are dealing with a right triangle, use sine, cosine, or tangent.

OpenStudy (coexist2):

sin cos or tangent for what numbers?

OpenStudy (coexist2):

i dont understand the layout of the problem.

OpenStudy (mathstudent55):

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OpenStudy (mathstudent55):

You are given the measure of angle A. It is 70 deg. A right triangle has two legs and a hypotenuse. In your triangle, which sides are legs, and which side is the hypotenuse?

OpenStudy (coexist2):

C is the hype. and a & b are the legs

OpenStudy (coexist2):

@mathstudent55

OpenStudy (mathstudent55):

Correct. Now look at the angle of 70 deg. The leg called "a" which has length 14 is given. For the 70-deg angle, is leg "a" the opposite leg of the the adjacent leg?

OpenStudy (mathstudent55):

Hint: opposite means "across form"; adjacent means "next to"

OpenStudy (coexist2):

@mathstudent55 its the opposite leg?

OpenStudy (coexist2):

its the opposite leg? @mathmale

OpenStudy (mathstudent55):

Yes, a is the opposite leg to angle A. We know a is 14. b is the adjacent leg to angle A. Which trig ratio relates the adjacent leg to the opposite leg?

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