Question

17. Two equal sides of a triangle are each 5 metres less than twice the third side. If the perimeter of
the triangle is 55 meters, find the lengths of its sides​

Answer 1

Answer:

equal sides are of 21 meter

and third side is of 13 meter

Answer 2

Answer:

let the third side be x m

then the two equal sides are of length (2×-5)m

perimeter of triangle =55m

×+(2×-5)+(2×-5)=55

5×-10=55

×=13

hence, the length of the triangles sides are 13m, 21m and 21 m