Reviewer on Polygon

What instrument is most appropriate for measuring the angles of a polygon?

• clinometer

• protractor

• ruler

• tape measure

When drawing a regular hexagon, which of the following is the measure of each interior angle?

• 90°

• 120°

• 135°

• 150°

Which of the following characteristics makes regular polygons different from irregular polygons?

• Irregular polygons can only have 5 sides and angles.

• Regular polygons always have more than 10 sides and angles.

• Regular polygons have equal length of sides, but not for irregular polygons.

• Irregular polygons have the same length of sides, but not regular polygons.

Which of the following polygons has 7 sides?

• decagon

• heptagon

• hexagon

• triangle

When drawing a rectangle, which angles do you need to measure accurately?

• 30°

• 45°

• 60°

• 90°

In drawing a regular octagon, what would be the measurement of each interior angle?

• 135°

• 140°

• 150°

• 160°

What is the complementary angle to a 45° angle measured?

• 45°

• 135°

• 145°

• 205°

Which of the following pairs of angles whose sum of the measures is 180°?

• They are congruent.

• They form a linear pair.

• They form vertical angles.

• They are perpendicular to each other

Which of the following best describes the square?

• Regular and Convex

• Irregular and Convex

• Regular and Non-Convex

• Irregular and Non-Convex

Which of the following statements is true about a regular octagon?

• It can be non-convex if it has angles greater than 180 degrees.

• It is always convex and has all sides and angles equal.

• It has unequal sides but equal angles.

• It has unequal angles but equal sides.