V(cylinder)= πr²h
d=2r,
d is diameter, r is radius.
When diameter is tripled, a new diameter D=3d,
new radius R=3d/2=(3*2r)/2=3r
R=3r
V(new cylinder)= πR²h = π(3r)²h=9πr²h
V(new cylinder)/V(cylinder)=9πr²h/πr²h=9
Volume new cylinder 9 times more the volume of old cylinder.
Answer:
1 2/3 = 5/3
6 3/4 = 27/4
-9 7/3 = -34/3
4 2/7 = 30/7
Step-by-step explanation:
Answer:72.1
103*.7=72.1
I hope this is good enough:
Answer:
351
Step-by-step explanation:
The top box draw a line and then it will be just 9*9
then you have 30ft * 9ft
30*9 = 270
9*9 = 81
270+81 = 351
