Centimeters to feet conversion
STEP 1: relation between ft and centimeters
We know that there are 12 inches in one ft and that that there are 2.54 cm in 1 in:
12 in ⇔ 1 ft
2.54 cm ⇔ 1 in
On these type of equivalences we can multiply both sides by the same number.
If we multiply both sides by 12:
12 x 2.54 cm ⇔ 12 x 1 in
30.48 cm ⇔ 12 in
Then, as we said at the beggining there are 12in in 1 ft:
30.48 cm ⇔ 12 in ⇔ 1 ft
Therefore, in one foot there are 30.48 cm
30.48 cm ⇔ 1 ft
STEP 2: centimeters are in 54 feet
We have that
30.48 cm ⇔ 1 ft
We want to find how many cm are related to 54 ft, then we multiply both sides of the last equivalence by 54:
54 x 30.48 cm ⇔ 54 x 1 ft
1,645.92cm ⇔ 54 ft
Then, there are 1,645.92cm in 54 ft.
ANSWER: D. 1,645.92 cm