A low bridge has a posted height of 7 ft 6 in. If your truck is 2.3 m high, how many centimetres over or under the bridge height will it be?
1 in ≈ 2.54 cm
And 7 ft 6 in = 90 in = 90 (2.54 cm) ≈ 228.6 cm
And 2.3 m = 230 cm
So.....your height is about 230 - 228.6 ≈ 1.4 cm under
