Question 734562


a.

cylinder: {{{V= b h = pi* r^2 *h }}}

if {{{r=10mm}}}, {{{h=25mm}}}, then


{{{V=pi* (10mm)^2 *25mm }}}

{{{V=pi*100mm^2 *25mm }}}

{{{V=2500*pi*mm^3 }}}

{{{V=2500*3.14*mm^3 }}}

{{{V=7850mm^3 }}}



b. rectangular prism {{{V= a b h}}}

if {{{a=20mm}}}, {{{b=8mm}}}, {{{h=6mm}}}, then

{{{V=20mm* 8mm* 6mm}}}

{{{V=960mm^3}}}


c. equilateral triangle 

{{{V=(1/2)*length*width*height}}}

{{{length=4in}}}, {{{width=5in}}}, {{{height=7in}}}

{{{V=(1/2)*4in*5in*7in}}}

{{{V=(1/2)*140in^3}}}

{{{V=70in^3}}}