It is: 690
687 to two significant figures is 690.
54.26 rounded to 1 significant figure is 50
0.5313
It is: 690 to two significant figures
687
686.88 rounded to 3 significant digits is 687
Rhombus
0.1528
343.5
22% of 687= 22% * 687= 0.22 * 687= 151.14
687