Measurements

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1. The least number of planes that can enclose a solid are , the solid is called .

2. Can a polyhedron have for its faces = 12,edges = 16 and vertices = 6.

3.

π

is an number.

4. A is a plane surface that is enclosed between two radii and the circular arc of the circle.

5. If the radius of a circle is doubled, the area of the new circle formed is times the old area.

6. The ratio between the circumference and diameter of any circle is .

7. A line segment which joins any two points on a circle is a .

8. The longest chord of a circle is .

9. The radius of a circle of diameter 24 cm is cm.

10. A part of a circumference of a circle is called as an .