A rectangle has sides of length 6.1cm and 8.1 cm correct to 1 decimal place.
Calculate the upper bound for the area of the rectangle as accurately as possible.
3 answers
Area = length * width = 6.1*8.1 = ?
49.4
The question says to calculate the U.B for the area of the rectangle. Hence we need to take the U.B of length as well as the width.
It also says "correct to one decimal place" = 0.1 / 2 = 0.05 (limit)
To calculate the U.B,
8.1+ 0.05= 8.15
6.1+0.05= 6.15
Therefore, area= length*width
8.15*6.15= 50.1225
(To calculate the L.B, subtract 0.05 with number)
It also says "correct to one decimal place" = 0.1 / 2 = 0.05 (limit)
To calculate the U.B,
8.1+ 0.05= 8.15
6.1+0.05= 6.15
Therefore, area= length*width
8.15*6.15= 50.1225
(To calculate the L.B, subtract 0.05 with number)
6 answers