Question

The length of a rectangle is measured as 370mm correct to 2 significant figures. What is the upper bound for the length

Answer 1

The upper bound for the length of 370 mm of a rectangle is as follows.

Upper and lower bounds are used to describe all the possible values that a rounded number could be.

Lower Bounds - The lower bound is the smallest value that would be used to round up a number to the previously estimated value.

Upper Bounds - The upper bound is the smallest value that would be used to round up a number to the next estimated value.

For example, 140 cm measured to nearest 10 cm.

10/2 = 5

Upper bound 140 + 5 = 145

Lower bound 140 - 5 = 135

Similarly for  

370 = 100

100/2 = 50

Upper bound for the length of a rectangle = 370 + 50 = 420 mm

Lower bound for the length of a rectangle = 370 - 50 = 320 mm

Answer 2

Answer:

UB: 375

Step-by-step explanation:

370mm to 2 sig figs..

UB: 375

LB:365