Problema Solution

An isosceles triangle with a perimeter of 47.4cm has one short side and two equal longer sides. The short side is 8.6cm. What is the length of one longer side

Answer provided by our tutors

Let 'a' represent the length of one longer side.

The perimeter of the triangle is equal to 47.4 cm:

short side + 2*longer side = 47.4

8.6 + 2a = 47.4

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click here to see the equation solved for a

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a = 19.4 cm

The length of one longer side is 19.4 cm.