Question

3) Perimeter of an isosceles triangle
is 13 cm Length of each congrount
side of a triangle is less thon
is base by lcm Find the length of
the base and each congruent
side of otriangle
​

Answer 1

Answer:

given perimeter of triangle = 13 CM

let the 2 equal sides of triangle be x

so it's base according to given question is= x+1

now perimeter of triangle = side + side + side

= x + x + x +1 = 13

= 3x = 12

= x = 12/3

= x = 4 CM

and it's base is x+1 = 4 + 1 = 5 CM

i hope it will help you

Answer 2

Answer:

in triangle ABC,

Let,

AB=x-1

AC=x-1

BC=x

perimeter of triangle ️,

P=AB+AC+BC

13=(x-1)+(x-1)+x

13=3x-2

13+2=3x

15=3x

15/3=x

Therefore,

X=5cm

base BC=5cm

and congruent sides AB and AC=4cm.

Step-by-step explanation:

Hope it will help you.

I am grateful that I was able to help you

thank you.