Two equal sides of a triangle are each 5 metres less than the twice the third side.If the perimeter of the triangle is 55 metres,find the length......Class 8 question
Accepted Solution
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Answer: The sides are 13, 21, & 21 metersStep-by-step explanation:Let x represent the length of the base. Then the congruent side lengths are 2x - 5.Perimeter is the sum of the sides so(2x - 5) + (2x - 5) + (x) = 55 5x - 10 = 55 5x = 65 x = 13The length of the base is 13 meters.The congruent side lengths are 2(13) - 5 = 26 - 5 = 21