Question

The isosceles triangle below has a

perimeter of 6x + 7. If the base is 5
what is the length of each of the
unknown sides?

Answer 1

3x+1

Explanation:

6x+7-5=2s

6x+2=2s

s=3x+1

Answer 2

3x+1 each

Explanation:

since its an isosceles triangle, it has 2 congruent sides and one other side (the base).

Since we know the base is 5, we know that the other two sides added up are (6x+7)-5, which is 6x + 2

Because they're congruent, each one is half of that. Half of 6x+2 is 3x-1