Question

the perimeter of an isosceles triangle is 250 CM if the unequal side measures 50 cm find the two equal sides

Answer 1

Perimeter of isosceles traingle=ab+bc+cd
in a isosceles triangle ab=cd

P=bc+2ab (since two sides are equal)
250=50+2ab
200=2ab
100=ab

ab=cd=100cm

the equal sides are of 100cm

Answer 2

As we know that isosceles triangle have only two equal sides

Then one equal side =x
Other equal side =x
One unequal side =50

Then

Perimeter =x+x+50

250=x+x+50

250=2x+50

250-50=2x

200=2x

200/2=100

100=x

One equal side x is equal to 100

Then sum of two equal sides =100+100=200