Pi=3.14, V=8.800cm3 , h=28cm What,s the radio?

Question

Pi=3.14

V=8.800cm³

h=28cm

r=??

 

Answer 1

The formula for volume is

 

V = pi*(r²)*h

 

 

Since we want r, we can solve for r from the formula.

 

 

Divide both sides of the equation by pi*h.  This will isolate r².

 

V / (pi * h) = r²

 

 

Square-root both sides of equation to obtain r.

 

√[V / (pi * h)] = r

 

 

Finally, we can plug in the given values.

 

√[8.8 cm³ / (3.14 * 28 cm)] = r

 

√(8.8 cm³ / 87.92 cm) = r

 

√(0.1 cm²) = r

 

0.316 cm = r