If a parallelogram is a regular polygon, then what will be the value of each interior angle?
If each interior angle of a regular polygon is 150°, then the polygon has ___ sides.
Each interior angle of a regular polygon is 144∘. Then the measure of each interior angle of a regular polygon which has double the number of sides as the first polygon is
If each interior angle of a regular polygon is 120°, then it has ___ sides.