Question

answer the following
1 differnce between plane angle and solid angle
2 abbreviate GMT and IST 3what is the appproximation
4 write the rules for rounding off
5 Round off the following number to the nearesthundred
A)7834 B)8462​

Answer 1

ANSWER:

1)

i)Plane angle is measured in radian while solid angle in steradian.

ii) Plane angle is measured by an arc on circle whose length is r units whereas solid angle is measured by an area on sphere whose area is r*r square units.

2) Gmt=greenwich mean time

IST= indian standard time

3)If number is greater than 5, then add 1 to next number.

4)

a)7800 b)8500