A wooden plank is placed alongside a meter scale. The reading at one end of the plank on the scale is 37 and at the other end, it is 84. Both the readings are in centimetres.
Determine the length of the plank.
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Answer: B=37
P=84
L=?
P=2 (l+b)
84= 2(x+37)
84= 2x37x = 74x
84=74x
x=74/84
x=0.88095238095
Explanation:
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