Answer:
The maximum of the absolute value of the magnetic flux is

Step-by-step explanation:
From the question we are told that
The magnetic field is

One side of the triangle is

Generally the absolute value of the magnetic flux is mathematically represented as

At maximum

So
The maximum of the absolute value of the magnetic flux.

Now we are told that the triangle is of equal sides so the angle each makes with the other is
this is because total angle in a triangle is 180
Now the height of the triangular loop is mathematically evaluated using SOHCAHTOA as

=>

=>

=>

Hence the area is evaluated as

substituting values


Thus

