the volume of a circular iron rod of length one metre is 3850 cm³. find its diameter
Answers
Answered by
1
Answer:
154 cm
Step-by-step explanation:
1 m = 100 cm
πr²l = 3850
(22/7)*r² *(100)= 3850
100* (11/7)r² = 1925
r = √(1925*7*100/11)
= √5929
= 77
Answered by
1
Answer:
Step-by-step explanation:
π(r^2)h = 3850
(r^2) x 22/7 x 100 = 3850......[length = 1 m =100 cm]
(r^2) = 3850/100 x (7 / 22)
= 5929 cm^2
r = +77 cm [ length cannot be negative]
diameter = 2 x 77 cm = 154 cm
Similar questions