Question

A storm is expected to hit 7 miles in every direction from a small town. What is the area that the storm will affect?

Answer 1

Answer:

153.86 per sq mile

Step-by-step explanation:

Area affected is circumference of a circle with radius 7 mile

Thus the area affected= pi r^2

                                      = 3.14 * 49

                                      = 153.86 per sq mile

Answer 2

Answer:

Area thar strom will affect is 154 sq. miles.

Step-by-step explanation:

• In the given question, the strom is expected to hit in every direction.
• We have to think of a geometrical shape which is equal in all directions fron a given fixed point.
• Circle of radius, r having centre at O is the only shape which is equal in every direction.
• The area of circle having radius, r is given by:

$area \: of \: circle = \pi {r}^{2}$

• Given that, Radius of circle formed by strom, r = 7 miles.
• Area affected by strom is equal to area of circle with radius, r = 7 miles.

$area = \pi {7}^{2} \\ using \: \pi = \frac{22}{7} \\ area = \frac{22}{7} \times 7 \times 7 \\ = 22 \times 7 \\ = 154$

• Hence, area affected by strom is 154 sq. miles.