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Each side of a triangle is increased by 10 cm; if the ratio of the perimeter of the new triangle and the given triangle is 5 : 4, find the perimeter of the given triangle |
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Answer» perimeter of old triangle is 120 and the new one is 150.Step-by-step explanation:since a triangle has 3 SIDES and INCREASED by 10 cm each, then the total for 3 sides is 30 ( 10*3).then if the original perimeter was 4X then the new one is 1x more than the original perimeter. so , since x is CONSIDERED 30 , then 4x will be 120 and 5x will be 150 .so the perimeter of old triangle is 120 and the new one is 150. |
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