tiff9702 one year ago http://student.alphaplustesting.org/TestQuestions/maths-questions/st-maths7-ex4.2-q40.png

1. anonymous

the distance covered will be the diameter of circle that have an area of 5124 sq miles

2. anonymous

$\pi r^2=5124$ $r^2=\frac{ 5124 }{ \frac{ 22 }{ 7 } }=5124 \times \frac{ 7 }{22 }=\frac{ 2562 \times 7 }{ 11 }$ find r That is the required distance.

3. tiff9702

Soooooo..................................

4. tiff9702

1630.363636363636

5. anonymous

don't forget the square root

6. tiff9702

40.37776165618441

7. tiff9702

So A

8. anonymous

yea