Round off the following numbers to three significant figures

Round off the following numbers to three significant figures:(a) 58.342m, (b)68.534s, (C)2553N, (d)7555kg.

Solution

The significant figures of a number are digits that carry meaning contributing to its measurement resolution.

a. 58.342 = 58.3 m

b. 68.534 = 68.5 sec

c. 2553 = 255 N

d. 7555 = 755 kg