Topics
9. Polygons
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Geometry

9.02 Parallelograms

Lesson
Practice
Adaptive
Worksheet

Interactive practice questions

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

A parallelogram with its two angles labeled. The angle in the lower left is marked as 65 degrees, indicating its measure. The angle in the upper left is labeled with 'x' degrees, indicating its unknown measure. Each opposite pair of sides have matching arrowheads, indicating they are parallel.

Enter each line of work as an equation.

Easy
< 1min

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

Easy
< 1min

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

Easy
< 1min

Consider the parallelogram below.

Easy
< 1min
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Outcomes

G.PC.1

The student will prove and justify theorems and properties of quadrilaterals, and verify and use properties of quadrilaterals to solve problems, including the relationships between the sides, angles, and diagonals.

G.PC.1a

Solve problems, using the properties specific to parallelograms, rectangles, rhombi, squares, isosceles trapezoids, and trapezoids.

G.PC.1b

Prove and justify that quadrilaterals have specific properties, using coordinate and algebraic methods, such as the slope formula, the distance formula, and the midpoint formula.

G.PC.1c

Prove and justify theorems and properties of quadrilaterals using deductive reasoning.

G.PC.1d

Use congruent segment, congruent angle, angle bisector, perpendicular line, and/or parallel line constructions to verify properties of quadrilaterals.

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