Topics
6. Quadrilaterals & Other Polygons
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United States of AmericaFL
Grade 912

6.02 Properties of 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

What is the value of $x$x in the parallelogram below?

Easy
< 1min

Consider the parallelogram below.

Easy
1min
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Outcomes

MA.912.GR.1.4

Prove relationships and theorems about parallelograms. Solve mathematical and real-world problems involving postulates, relationships and theorems of parallelograms.

MA.912.LT.4.8

Construct proofs, including proofs by contradiction.

MA.912.LT.4.10

Judge the validity of arguments and give counterexamples to disprove statements.

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