Question

Marina wants to install security cameras in her store, which has dimensions 48 feet by 48 feet. Each camera can view an area of approximately 128 ft2, with a viewing area shaped like a right triangle.
The distance between grid lines is 4 feet.




How many cameras will be necessary to cover the entire store?

Answer 1

Marina will need to set up 18 security cameras.

Answer 2

Answer:

18 cameras will be necessary to cover the entire store.

Step-by-step explanation:

Length of the store= l = 48 feet

Width of the store = w = 48 feet

Area of the store , A= l × w = $48 feet\times 48 feet = 2,304 ft^2$

Area covered by single camera , a= $128 ft^2$

Let the n number of cameras are required to cover the store .

$n=\frac{A}{a}=\frac{2,304 feet^2}{128 feet^2}=18$

18 cameras will be necessary to cover the entire store.