Question

please answer this question

Answer 1

height of first pole 7m
height of second pole is 13 m
13-7=6
distance between the feet
it form a right angled triangle 
the distance between the top is the hypotenous
let the height be x
 
=6²+8²=√x
=>36+64=√x=√100=10

Thus,the difference between the top is 10 m

hope it helps