Question

the figure shows the represents the pattern of a glass ceiling based on the marketings shown. which triangles can be proven congruence?

Answer 1

Pay your attention to the triangles INK and KNP.

Notice that:

$IK\equiv PN$$\angle IKN\equiv\angle KNP$$KN\equiv NK$

For the SAS criterion, then:

$\Delta IKN\cong\Delta PNK$

It is apparent but not known if there are collinear points in the figure. So, this is the only congruence that we can be 100% sure about.