(i) Simple closed curve (ii) Concave polygon (iii) Convex polygon 2. Is circle a simple closed curve? 3. What is a regular polygon? Give example. 4. Sum of the measures of the exterior angles of a polygon is _____________. 5. Sum of the angles of a polygon of n sides is ____________ 6. Find the angle measure in the following figures. (i) (ii) 7. Find the measure of each exterior and interior angle of a regular polygon of 9 sides. 8. Consider the following parallelogram. Find the value of the unknowns 9. Rent is a rectangle. Its diagonals meet at O Find and state which property of rectangle is used to find .
(i) Simple closed curve (ii) Concave polygon (iii) Convex polygon 2. Is circle a simple closed curve? 3. What is a regular polygon? Give example. 4. Sum of the measures of the exterior angles of a polygon is _____________. 5. Sum of the angles of a polygon of n sides is ____________ 6. Find the angle measure in the following figures. (i) (ii) 7. Find the measure of each exterior and interior angle of a regular polygon of 9 sides. 8. Consider the following parallelogram. Find the value of the unknowns 9. Rent is a rectangle. Its diagonals meet at O Find and state which property of rectangle is used to find .