Question

the perimeter of triangle is 120m. its two sides are 30m and 50m its third side is -​

Answer 1

Perimeter of a triangle = Sum of all sides

Let the third side = x

Then,

120 = 30 + 50 + x

120 = 80 + x

120 - 80 = x

40 = x

Hence, the third side = $\bf{\huge{\red{40m}}}$

Answer 2

HERE IS UR ANSWER MATE!!!

PERIMETER= 120m

ONE SIDE= 30m

SECOND SIDE= 50m

THIRD SIDE= 120-50+30

                     = 120- 80

                      =40

THEREFORE, THE THIRD SIDE IS 40m

HOPE THIS HELPS U