The perimeter of an isosceles triangle is 32 cm while its equal sides together measure 18 cm. Find the length of the other side
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 14 cm
The perimeter of a triangle is the sum of its three sides. An isosceles triangle has two equal sides, and the question gives their total, so the third side is what is left of the perimeter.
Two equal sides together \(=18\,\mathrm{cm}\) (9 cm each)
Third side \(=32-18=14\,\mathrm{cm}\)