Matthew Soon's answer to Kuromi<3's Secondary 1 Maths Singapore question.
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Hi!
If the area of the square board is 900, you may simply square-root 900 to get the length of the board.
Root(900) should give you 30.
Then perimeter is simply 4 sides × 30 = 120 cm.
The volume of the cube is:
Length × Length × Length = 30 × 30 × 30
= 27,000 cm^3
Hope this helps!
If the area of the square board is 900, you may simply square-root 900 to get the length of the board.
Root(900) should give you 30.
Then perimeter is simply 4 sides × 30 = 120 cm.
The volume of the cube is:
Length × Length × Length = 30 × 30 × 30
= 27,000 cm^3
Hope this helps!
Date Posted:
3 years ago
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