hey mate..
the position at which the tips of the scissors will be FARTHER APART is at position B.
as the angle made by the scissors at the centre is greater in position B.
See attachment for one such shell. The volume is given by the sum of infinitely many thin shells like this, each with radius

and height determined by the vertical distance between the upper blue curve and the lower orange curve for any given

, i.e.

.
The volume is then
Answer:
B and D
Step-by-step explanation:

Answer:
Step-by-step explanation:
chris is 11 5/6 years old
marian is 1 1/3 years younger...
(11 - 1) = 10 : (5/6 - 1/3 = 5/6 - 2/6 = 3/6 = 1/2)...so marian is 10 1/2
jane is 1 1/4 years younger then marian...
10 1/2 - 1 1/4...
(10 - 1) = 9 : (1/2 - 1/4 = 2/4 - 1/4 = 1/4)....so Jane is 9 1/4 years <==