Hannah wants to have concrete stairs for
her backdoor. How much concrete will be
needed to...
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Mathematics, 29.05.2020 21:57, candicecorvette
Hannah wants to have concrete stairs for
her backdoor. How much concrete will be
needed to build the stairs?
30 cm
70 cm
15 cm
10 cm
20 cm
70 cm
45 cm
[ ? ]cm3
Enter
![answer](/tpl/images/cats/otvet.png)
Answers: 1
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