Trigonometric Ratios?

Question

Find the values of the following in simplest fraction form then divide to represent in decimal form.
AB = 13, AC = 12, BC = 5

 

Factional form

Sin A = 

Cos A =

Tan A=

 

Decimal form

Sin A =

Cos A =

Tan A =

 

Please explain

Answer 1

You have a right triangle with AB=13, AC=12, and BC=5

draw the figure

sin=opp/hyp

cos=adj/hyp

tan=opp/adj

 

sinA=5/13

cosA=12/13

tanA=5/12

 

sinA=0.3846154

cosA=0.9230769

tanA=0.4166666...