Question

Q8. The perimeter of an isosceles triangle is 315 cm. Find the third side of the triangle if the
equal sides measure 100cm.​

Answer 1

Answer:

115cm is an answer because 100+100=200. so left third side =115cm

Answer 2

Answer:

115cm

Step-by-step explanation:

let x be equal sides and y be third side

perimeter = 315 = x + x + y

315 = 2x + y

315= 2*100 + y

y = 315 - 200

y = 115 cm