9. Polygons & Quadrilaterals

Consider the figure shown, given that $ABCD$`A``B``C``D` is a trapezoid.

a

Which sides are parallel?

$DC$`D``C` and $EB$`E``B`

A

none

B

$AB$`A``B` and $DC$`D``C`

C

$AD$`A``D` and $BC$`B``C`

D

$DC$`D``C` and $EB$`E``B`

A

none

B

$AB$`A``B` and $DC$`D``C`

C

$AD$`A``D` and $BC$`B``C`

D

b

Find $m\angle ABC$`m`∠`A``B``C`.

c

Find $m\angle ADC$`m`∠`A``D``C`.

Easy

Approx 3 minutes

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Identify and/or use properties of quadrilaterals