Question

C. Round off each of the following
quantities to three significant figures :
a. 1.43 cm b. 458 x 102 cm
c. 643 cm d. 0.039 m
e. 6.398 x 10 km
f. 0.0179 g g. 79,000 m
h. 42,150 i. 649.85;
j. 23,642,000 mm
k. 0.0041962 kg​

Answer 1

Answer:

a. 1.4 cm

b.46000 cm

c. 640cm

d. 39×10^-3 m

e.6.4×10 =64 km

f. 179×10 ^-4 g

g. 79×10 ^3 m

h. 42000

i.649.9

j.23.642×10 ^6

k.41.962×10 ^-4