Math task card activity featuring geometry problems to find values of variables 'a' and 'x' related to angles and parallel lines.
Two light blue task cards on a dark wooden surface. The left card, labeled "START," asks to find the value of 'a' given two angles, (6a + 42)° and (18a - 12)°, on intersecting lines. The right card, labeled "F," shows a previous answer of 4.5 and asks for the value of 'x' to make lines n and m parallel, with angles 80°, 30°, and x° shown.