Tan Kee Lin's answer to Wivine's Secondary 1 Maths question.
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Side of missing length= 3x+3-(X+2)
=2x+1
Perimeter=3x+3+x+2x+1+x+2+3x+1
= 10x+7
=2x+1
Perimeter=3x+3+x+2x+1+x+2+3x+1
= 10x+7
Date Posted:
6 years ago
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