A cone and a cylinder have the same volume and bottom area. The height of the cone is () times that of the cylinder It's due tomorrow

A cone and a cylinder have the same volume and bottom area. The height of the cone is () times that of the cylinder It's due tomorrow

Cone volume 1 / 3 π R & # 178; H
Cylinder volume π R & # 178; H
So the answer is three times

Tracing and application questions
On the highway, one or two cars with a length of 4 meters and a speed of 110 m / h are prepared to surpass one or two trucks with a length of 12 meters and a speed of 100 m / h. how long does it take from the beginning to the end?
It's km / h. sorry, ha ha

(4+12)/(110-100)=1.6
110 m / h? What kind of car is this? 110 km?
If it's kilometers: (directly into meters, seconds)
(4 + 12) / ((110-100) * 1000) * 3600 = 5.76 seconds

A pursuit and application problem
A circular track, 400 meters long, a ride 490 meters per minute, B walk 250 meters per minute, in the same direction, ask the first meeting time?

Set time t
490t-400=250t
T = 5 / 3 minutes = 100 seconds