#### Measurements One Mark Questions

8th Standard EM

Reg.No. :
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Maths

Time : 00:30:00 Hrs
Total Marks : 10
5 x 1 = 5
1. The ratio between the circumference and diameter of any circle is_______

()

π

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

()

chord

3. The longest chord of a circle is __________.

()

diameter

4. The radius of a circle of diameter 24 cm is __________.

()

12 cm

5. A part of circumference of a circle is called as ________.

()

an arc

6. 5 x 1 = 5
7. Area of a circle

8. (1)

(π+2)r

9. Circumference of a circle

10. (2)

$2{ \pi r }^{ }$

11. Area of the sector of a circle

12. (3)

πr2

13. Circumference of a semicircle

14. (4)

$=\frac { { \theta }^{ 0 } }{ { 360 }^{ 0 } } \times { \pi r }^{ 2 }$

15. (5)

Cylinder