Round 0.0645 g to 2 significant figures: g
0.064
0.06
0.065
0.1

0.065 g

Step-by-step explanation:

Given: 0.0645

Round the given decimal to 2 significant figures.

Round: To reduce the decimal digits which changes last digits.

If digits greater than 5 then previous digits increase by 1

If digit less than 5 then no change in last digit.

Round of 2 decimal place: Write two digits after decimal.

Significant figure: The number of digits from first digits 1 to 9 .

In the given decimal number. Number of digits after decimal is 4 and significant is 3

0.0645 Round off to 2 significant number.

0.0645 ⇒ 0.065 g

The unit of number doesn't change.

Angles that are on the opposite sides of the transversal are called alternate angles e.g. 1 + 8. All angles that are either exterior angles, interior angles, alternate angles or corresponding angles are all congruent.