sin=opposite / hypotenuse
cos=adjacent / hypotenuse
tan=opposite / adjacent
Sin of A= opposite / hypotenuse
= 4 (sides of the right triangle are congruent, it's an isoscles) / [tex]4* \sqrt{2} [/tex]
= 1/ [tex] \sqrt{2} [/tex]
= [tex] \sqrt{2} / 2[/tex]
Cos of A= adjacent / hypotenuse
= 4 / [tex]4* \sqrt{2} [/tex]
= 1/ square root of 2
= [tex] \sqrt{2} / 2[/tex]
Tan of A=opposite / adjacent
= 4/4
= 1
Hope this helps :)
