Ping dove off a 10 meter platform. He reached a depth of 6 meters in the water. What was the change in height?

The change in height can be calculated by finding the difference between the initial height (10 meters) and the final depth (6 meters):

Change in height = Initial height - Final depth
= 10 meters - 6 meters
= 4 meters

Therefore, the change in height was 4 meters.

To find the change in height, we need to subtract the depth reached in the water from the height of the platform.

The height of the platform is 10 meters and the depth reached in the water is 6 meters.

So, the change in height can be calculated as:
Change in height = Height of platform - Depth reached in water
Change in height = 10 meters - 6 meters
Change in height = 4 meters

Therefore, the change in height is 4 meters.