Topics
8. Polygons
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United States of America
Grades 9-12

8.02 Parallelograms

Lesson
Practice
Adaptive
Worksheet

Interactive practice questions

Find the value of $x$x in the parallelogram below.

A parallelogram with its top and bottom sides marked with double arrowheads, indicating that these sides are parallel, and its left and right sides are marked with a single arrowhead, indicating that they are also parallel. The angles at the upper-right and the bottom-left vertices of the parallelogram are both labeled "$79$79º," indicating their measures. The angle at the lower-right corner of the parallelogram is labeled "$x$xº," indicating its measure.

Enter each line of work as an equation.

Easy
< 1min

Find the value of $x$x in the parallelogram below.

Easy
< 1min

Consider the parallelogram below.

Easy
1min

Consider the parallelogram below.

Easy
< 1min
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Outcomes

HSG.CO.C.11

Prove theorems about parallelograms. Theorems include: opposite sides are congruent, opposite angles are congruent, the diagonals of a parallelogram bisect each other, and conversely, rectangles are parallelograms with congruent diagonals.

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