The CN Tower is 390 meters taller than the largest church in the world The sum of there heights is 710 meters What is the height of the CN tower?

Let the height of the largest church be ( x ) meters. The CN Tower is then ( x + 390 ) meters tall. According to the problem, the sum of their heights is 710 meters:

[ x + (x + 390) = 710 ]

Simplifying, we find ( 2x + 390 = 710 ), which gives ( 2x = 320 ), leading to ( x = 160 ) meters. Thus, the height of the CN Tower is ( 160 + 390 = 550 ) meters.