Hi mrmann,

i) The two triangles are similar because of the AA postulate which says "If two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar"

Angle M is congruent to angle Q and angle N is congruent to angle P because they are alternate interior angles between the two parallel lines.

ii) Explain why

When two triangles are similar, their corresponding sides are proportional.

iii) Solve