Question

if the base of the isosceles triangle has length 10 cm and its perimeter is 28 CM then the length of the each congruent side is ​

Answer 1

Answer:

9cm

Step-by-step explanation:

base=10

per=28

let the length of same side be x

perimeter=sum of all sides

28=10+x+x

2x=28-10

2x=18

x=9

Answer 2

Answer:

9cm

step-by-step :

suppose, one side of isosceles triangle is x

two sides of isosceles triangle are congruent

x+x+10=28

2x+10=28

2x=28-10

2x=18

x=18/2

x=9

so, congruent side of isosceles triangle is 9cm