Help I will mark you brainlist

Complete each statement from the information given and the triangle criterion you used. if the triangles cannot be shown to be congruent, leave the box for the second triangle blank and choose for reason “cannot be determined.” carbon - regular hexagon. ∆can ≅ ∆ by

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

An octagonal prism has jow many lateral faces?