Respuesta :

SinФ=2/3
Then length is 2 and hypotenuse is 3
We can find base now by pythagorean thoerm
B^2=h^2-l^2
B^2=3^2-2^2
B^2=9-4
B=√5

 TanФ= l/b
CotФ=1/tanФ
CotФ=√5/2