Answer:
or 2.83 meter is the length of the board
Step-by-step explanation:
A = 4m²
L = 2x
W = x
A = LW
4 = 2x(x)
4 = 2x² divide both side by 2
2 = x² take their square root
that is the width of a board
Solve for the length
L = 2x substitute x to square root of 2
Checcking:
4m² = 4m²
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Answers & Comments
Answer:
or 2.83 meter is the length of the board
Step-by-step explanation:
A = 4m²
L = 2x
W = x
A = LW
4 = 2x(x)
4 = 2x² divide both side by 2
2 = x² take their square root
that is the width of a board
Solve for the length
L = 2x substitute x to square root of 2
Checcking:
A = LW
4m² = 4m²