Geometrical Shapes

12345678910111213
Across
  1. 3. The perimeter of a circle.
  2. 4. All the circles that have same centre.
  3. 5. A part of a circle.
  4. 11. The polygon has three altitudes and three medians.
  5. 12. A perpendicular drawn from a vertex to its opposite side.
  6. 13. Half of a circle.
Down
  1. 1. Double the radius of a circle.
  2. 2. A polygon bounded with four line segments.
  3. 4. The line segment joining any two vertices of the quadrilateral is in the same region.
  4. 6. At least one line segment joining the vertices is not a part of the same region of the quadrilateral.
  5. 7. A part of a circle enclosed by a chord and an arc of the circle.
  6. 8. No length, breadth and height.
  7. 9. A line joining the midpoint of a side to its opposite vertex.
  8. 10. The distance between the centre and any point on the boundary of the circle.