Check below, please
1) In this trapezoid, we can name the legs and the bases this way:
• Legs: ,AB, and ,CD
Notice that the legs are denoted by the points that form them since it is a line segment.
• Bases: AD, and ,BC
• Base angles: ∠BAD and ∠CDA
2) A trapezoid is a quadrilateral with at least one pair of parallel sides. So examining those figures we can classify the following ones as trapezoids:
a) Trapezoid? No Explanation: There are two pairs of parallel sides in this quadrilateral
b) Trapezoid? Yes There is one pair of parallel sides in this quadrilateral
c) Trapezoid? yes A square can also be classified as a trapezoid
d) Trapezoid? Yes There is one pair of parallel sides in this quadrilateral
e) Trapezoid? Yes There is one pair of parallel sides in this quadrilateral