Answer:
Length 3 cm.
Width 3 cm.
height 9. cm
Step-by-step explanation:
The volume is the length * width * height = LWH.
81 = 3* 3 * 9 so L could be 3, W could be 3 and H could b 9 cm.
9
A
16 × 2 = 32
20 × 2 = 40
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