Grade 9 Parallelogram Questions

Which of the following is a defining characteristic of a parallelogram?

• Opposite sides are congruent and parallel.

• All sides are equal in length.

• Diagonals are perpendicular.

• Adjacent sides form right angles.

If one angle of a parallelogram measures 120°, what is the measure of the opposite angle?

• 60°

• 120°

• 90°

• 180°

In a parallelogram, one side measures 14 cm and its adjacent side measures 10 cm. What is true about the opposite sides?

• They measure 14 cm and 10 cm.

• They measure 14 cm and 14 cm.

• They measure 10 cm and 10 cm.

• They are perpendicular to each other.

What do the diagonals of a parallelogram do?

• They intersect at right angles.

• They bisect each other.

• They are equal in length.

• They are parallel to each other.

What is the sum of the interior angles of a parallelogram?

• 180°

• 270°

• 360°

• 90°

If one angle of a parallelogram measures 75°, what is the measure of its consecutive angle?

• 75°

• 105°

• 90°

• 180°

A quadrilateral has opposite sides that are equal but not parallel. Can it be classified as a parallelogram?

• Yes

• No

Which of the following statements is always true about parallelograms?

• Opposite angles are complementary.

• Diagonals are congruent.

• Consecutive angles are supplementary.

• Opposite sides form right angles.

If the diagonals of a parallelogram are divided into segments of 6 cm each, what is the total length of one diagonal?

• 6 cm

• 12 cm

• 24 cm

• 18 cm

A parallelogram has rotational symmetry of what degree?

• 45°

• 90°

• 180°

• 360°