Question

If you can help me I love you

Answer 1

Building height = 48 feet.

Process :-

the man and the building are casting shadow at same time so the they both are getting sunlight at the same angle.

Let's suppose height of the building as x.

we get,

x/72 = 6/9

or, 9x = 432

so, x = 48

Answer 2

I may be wrong but I believe the answer is 100 feet