Question

An isoscelos triangle has a perimeter of 28cm.Calculate
the length of each of the equal sides if the
remaining side is 100 mm long​

Answer 1

perimeter of traingle= side +side +side

let other sides be x

100mm =10cm

28= x+x+10cm

28= 2x +10

28-20= 2 x

18= 2x

x= 18/2

x=9