Question

Laptop screen sizes are determined by the length of the diagonal portion of the screen, rounded to the nearest whole number. A laptop screen has a 10 inch width and the height measures 8 inches. Calculate the screen size.

Group of answer choices

12.8 inches

9 inches

6 inches

14 inches

Answer 1

To calculate the screen size of a laptop, you can use the Pythagorean theorem. In this case, the screen size is 13 inches.

Step-by-step explanation:

To calculate the screen size of a laptop, we can use the Pythagorean theorem.

The Pythagorean theorem states that the square of the hypotenuse (the diagonal) is equal to the sum of the squares of the other two sides. In this case, we have a width of 10 inches and a height of 8 inches.

So, we can calculate the diagonal as follows:

Diagonal^2 = Width^2 + Height^2

Diagonal^2 = 10^2 + 8^2

Diagonal^2 = 100 + 64

Diagonal^2 = 164

Now we can take the square root of 164 to find the diagonal:

Diagonal = sqrt(164) = 12.81 inches

Since we are rounding to the nearest whole number, the screen size is 13 inches.

Answer 2

6 inches

Step-by-step explanation:

6 inches

using hypotenuse law

size =10² -8² =6²