Question

the perimeter of isosles is 30 cm. the length of its congurent 3 cm more than its base. find the length of all the side​

Answer 1

Answer:

Length of sides are; 11 cm, 11 cm, 8 cm

Step-by-step explanation:

Let congruent sides be x;

Let base be y;

Then by Angle sum we have;

x + x + y = 30

2x + y = 30

Now; y = x+3 [Derived]

=> 2x + x - 3 = 30

=> 3x + 3 = 30

=> 3x = 33

=> x = 11 cm

y = x-3 = 8 cm