SOLVING WORD PROBLEMS

• p = the triangle's perimeter.
• p = 14 cm + (2/5) p + (1/7)p (common denominator is 35)
• 35p = (35)14 cm + 35(2/5) p + 35(1/7)p
• 35p = 490 cm + 14p + 5p
• 35p - 19p = 490 cm
• 16p = 490 cm
• p = 30.625 cm
• The sides are therefore 14cm, 12.25 cm, 4.375 cm

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