Question

PLESSS help me I'm begging you

Answer 1

To find the volume of each pris you multiply the measures

So

first prism

$15\operatorname{cm}\times12\operatorname{cm}\times5\operatorname{cm}$

then first blanck is 12

Second prism

$5\operatorname{cm}\times14\operatorname{cm}\times4\operatorname{cm}$

if we multiply 5 and 14

$70sq\operatorname{cm}\times4\operatorname{cm}$

then second blanck is 70

Total volume

$\begin{gathered} (15\operatorname{cm}\times12\operatorname{cm}\times5\operatorname{cm})+(70sq\operatorname{cm}\times4\operatorname{cm}) \\ 900+280=1180 \end{gathered}$

then last blanck is 1180cu cm