6. The area of a rectangle is measured to be $5600 \mathrm {~cm} ^ { 2 }$ correct to 2 significant figures. The width of the rectangle is measured to be 80 cm correct to the nearest centimetre. Which one of the following expressions gives the greatest possible height of the rectangle? A $\quad 70.5 \mathrm {~cm}$ B $\quad 75 \mathrm {~cm}$ C $\quad \frac { 5650 } { 85 } \mathrm {~cm}$ D $\quad \frac { 5650 } { 80.5 } \mathrm {~cm}$ E $\frac { 5650 } { 75 } \mathrm {~cm}$ F $\quad \frac { 5650 } { 79.5 } \mathrm {~cm}$
6. The area of a rectangle is measured to be $5600 \mathrm {~cm} ^ { 2 }$ correct to 2 significant figures.
The width of the rectangle is measured to be 80 cm correct to the nearest centimetre.\\
Which one of the following expressions gives the greatest possible height of the rectangle?
A $\quad 70.5 \mathrm {~cm}$
B $\quad 75 \mathrm {~cm}$
C $\quad \frac { 5650 } { 85 } \mathrm {~cm}$
D $\quad \frac { 5650 } { 80.5 } \mathrm {~cm}$
E $\frac { 5650 } { 75 } \mathrm {~cm}$
F $\quad \frac { 5650 } { 79.5 } \mathrm {~cm}$\\