Question

Can someone pls help me

Answer 1

$\\ \sf\longmapsto cos60=\dfrac{80}{x}$

$\\ \sf\longmapsto \dfrac{1}{2}=\dfrac{80}{x}$

$\\ \sf\longmapsto x=80(2)$

$\\ \sf\longmapsto x=160$

Answer 2

>> Answer

________

$\:$

Cos (60°) = 80/x

½ = 80/x

1x = 80•2

x = 160