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Lesson: Isosceles Trapezoids

This lesson introduces you to a new geometrical shape called the isosceles trapezoid. An isosceles trapezoid is a quadrilateral with exactly one pair of parallel sides, called bases, and another pair of nonparallel equal sides called legs.

Worksheet: Isosceles Trapezoids • 15 Questions

Q1:

Choose the option that makes this sentence true: A trapezoid have exactly one pair of congruent sides.

Acan
Bwill always
Ccan never

Q2:

Which statement is true for the given trapezoid?

AThe trapezoid has two pairs of perpendicular sides.
BThe trapezoid has three obtuse angles.
CThe trapezoid has two acute angles.
DThe trapezoid has two pairs of parallel sides.
EThe trapezoid has two right angles.

Q3:

How many trapezoids can you count?

Q4:

The speaker shown is an isosceles trapezoid. If , find .

Q5:

The speaker shown is an isosceles trapezoid. If , find .

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