Isosceles Trapezoid

Instructions:

Below, you will find an isosceles trapezoid centered at the origin (0,0). ✔️ Use the slider (a) to rotate the trapezoid between 0 and 360 degrees. ✔️ Use the check boxes and sliders (m, b, α, and β) to explore the line(s) of reflection of the pre-image trapezoid.

Specify the lines of reflection (symmetry) for the trapezoid.

Select all that apply

A
A reflection along a horizontal line passing through the trapezoid.
B
A reflection along a vertical line passing through the trapezoid.
C
A reflection along a horizontal line passing through the center of the trapezoid.
D
A reflection along a vertical line passing through the center of the trapezoid.

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What is the minimum angle of rotation to map the trapezoid onto itself?

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Which of the choices below describe the type of types of symmetry this figure has?

Select all that apply

A
Reflectional symmetry
B
Rotational symmetry
C
Both reflectional and rotational symmetry
D
Neither reflectional or rotational symmetry

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Isosceles Trapezoid

Instructions:

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