Question

what is the maximum no. of circumcircle did a triangle can have?​

Answer 1

Step-by-step explanation:

Among all inscribed triangles with a given base, the tallest one is isosceles and, therefore, it has the largest area, due to the standard formula A = b×h/2, where A, b, and h are the area, the base and the altitude of a triangle.

Answer 2

Maximum no. of circumcircle  can be only 1

Step-by-step explanation:

Circumcircle is that which meet all vertices of triangle.

In case of right angle triangle diagonal line will be diameter that is ac

so r = ac/2 where ac is hypotenuse

In case of equilateral triangle

r=s/$\sqrt3$

and if we know all sides then  

r =$\frac{abc}{\sqrt{(a+b+c)(b+c-a)(c+a-b)(a+b-c)} }$