Question

Units and Physical Quantities:
THe tallest tree in the world is Sequoia in California that is 368 ft. How high is this in meters? In kilometres?

Answer 1

There are $0.3048$ meters in one ft. Thus, in order to convert a value from ft to meters one should multiply it by $0.3048$:

$$368ft = 368\times 0.3048m = 112.1664m$$

There are $0.001$ kilometers in one meter. Thus, in order to convert a value from km to meters one should multiply it by $0.001$:

$$112.1664m = 112.1664\times 0.001km = 0.1121664\space km$$

Answer. 112.1664 meters or 0.1121664 kilometers.