Question

#9, help !! trigonometry

Answer 1

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) /
`4* √(2)`
= 1/
`√(2)`
=
`√(2) / 2`

Cos of A= adjacent / hypotenuse
= 4 /
`4* √(2)`
= 1/ square root of 2
=
`√(2) / 2`

Tan of A=opposite / adjacent
= 4/4
= 1

Hope this helps :)