Answer:
Arc length is 12436.8m
Step-by-step explanation:
arc length = 
* πD
where M is the angle measure of the arc
and D is the diameter
considering the earth as a circle and half the earth as a semi circle the angle measure of the arc will be = 180 degrees
* π * 7917.5 = 12436.8m
Thats not the case in other countries, just the us
a cheap way to go about it is, let's do away with the denominators, and we'll do so by simply multiplying both sides by the the LCD of all fractions, in this case, that'd be "ab", so we multiply both sides by "ab".
Take it as 19 and 0.07, then the mixed no. Is 19 7/100 since 0.07 is 7/100
18 cm^3
1/2 x 4 x 3 = 6
6 x 3 = 18
