関連ワード:
does a trapezoid have four congruent sides does a trapezoid have four equal sides does a trapezoid have four congruent angles does a isosceles trapezoid have four congruent sides does a trapezium have four equal sides can a trapezoid have 4 congruent sides can a trapezoid have four equal sides does a trapezoid have four equal angles does a trapezoid have four equal length sides do all trapezoids have four congruent sides
