Answer:

1.

 V= l×w×h

  V=3cm×9cm×5cm

  V=135 cu.cm

2.

  V=l×w×h

  V=2cm×15cm×2cm

  V=60 cu.cm

3.

  V=S×S×S

  V=105cm×105cm×105cm

  V=315 cu.cm

4.

  V=S×S×S

  V=15cm×15cm×15cm

  V=240

5.

   V=l×w×h

   V=11cm×8cm×31cm

   V=589 cu.cm

Explanation:

thats my answer there is no mistake there

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