It is 13 hrs and 5 minutes.
Answer:
i dont speak spanish
Step-by-step explanation:
2=6-3 is the direct variation
Step-by-step explanation:
lets radius be r and height be h,
r+h=21 -----(1)
curved surface area
2×pi×r×h=616 -----(2)
use simultaneous eqn to solve for r and h.
total surface area of cylinder= 2×pi×r×h + 2×pi×r²
= ans if im not wrong
The answer will be a because they are similar and by law the ratio can be cubed to find ratio of volume