Want this question answered?
Be notified when an answer is posted
Chat with our AI personalities
If the base of an isosceles triangle is 11 and its perimeter is 39, then it has a height of 12.87.
The perimeter of any triangle is the sum of its 3 sides.
It is the sum of the lengths of its sides.
two isosceles triangles with common line
Perimeter of the isosceles triangle: 16.2+16.2+8.1 = 40.5 cm