Proving a Quadrilateral Is an Isosceles Trapezoid
Read this topicExplanations 2
- Thus, proving trapezoid ABCDABCDABCD with legs CD, AB is isosceles is equivalent to showing a) ∠DAB=∠CBA\angle DAB = \angle CBA∠DAB=∠CBA b) ∠ADC=∠BCD\angle ADC = \angle BCD∠ADC=…
By Vincent Huang, Caroline K
- One way to prove that a quadrilateral is an isosceles trapezoid is to show: The quadrilateral has two parallel sides. The lower base angles are congruent and the upper base angl…
By Caroline K, Alex Federspiel
Problems 5
- Each pair of vertices of a regular 10-sided polygon is connected by a line segment. How many unordered pairs of distinct parallel line segments can be chosen from these segments…
- Is a square an isosceles trapezoid? Why or why not?
- Let ABCDABCDABCD be a quadrilateral where m∠DAB=m∠ABC=80∘.m\angle DAB = m\angle ABC = 80^{\circ}.m∠DAB=m∠ABC=80∘. Must ABCDABCDABCD be an isosceles trapezoid? Why or why not?
- Is a parallelogram always an isosceles trapezoid? Why or why not?
- Which of the following angles measures for a quadrilateral could possibly be for an isosceles trapezoid?