subject

Polygons

Math ⇒ Geometry

Polygons starts at 7 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Polygons. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 11
A polygon has 18 sides. How many triangles can be formed by joining its vertices?
A polygon has 9 sides. What is the sum of its interior angles?
A regular polygon has 15 sides. What is the measure of each interior angle?
A regular polygon has 20 sides. What is the measure of each exterior angle?
A regular polygon has 9 sides. What is the measure of each exterior angle?
A regular polygon has each exterior angle measuring 24°. How many sides does it have?
Explain why a circle is not considered a polygon.
How many diagonals does a decagon (10-sided polygon) have?
If a polygon has 44 diagonals, how many sides does it have?
If a regular polygon has each interior angle measuring 135°, how many sides does it have?
If each interior angle of a regular polygon is 150°, how many sides does the polygon have?
If the sum of the interior angles of a polygon is 1620°, how many sides does it have?
State the difference between a convex and a concave polygon.
State the formula for the measure of each interior angle of a regular n-sided polygon.
A regular polygon has 3 times as many diagonals as sides. How many sides does it have?
A regular polygon has an interior angle that is 12 times its exterior angle. How many sides does the polygon have?
A regular polygon has interior angles each measuring 162°. Calculate the number of sides of the polygon.
Explain why a regular polygon cannot have an interior angle of exactly 179°.
Given a convex polygon with n sides, if the sum of the measures of every alternate interior angle is 1620°, find the value of n.
If the ratio of the number of diagonals to the number of sides in a polygon is 5:1, how many sides does the polygon have?