Question

laptop screen sizes are determined by the length of the diagonal portion of the screen; rounded to the nearest whole number. a laptophas a 10 inch width and the height measures 8 inches. calculate the screen size.

Answer 1

To find the answer is a bit tricky but you would use 'The Pythagorean Theorem'
so the formula for this is 
a*2+c*2=b*2
(*# is an exponent) 
8*2+c*2=10*2
8*2=64, 10*2=100
64xC=100
subtract 64 from 100:
C=36
then you square 36 giving you 6 as the answer!
Hope this helped!!

Answer 2

Answer:

The screen size to the nearest whole number is 13 inches.

Step-by-step explanation:

Consider the provided information.

The laptop has a 10 inch width and the height measures 8 inches. Screen sizes are determined by the length of the diagonal portion of the screen.

Now use the Pythagorean Theorem to find the diagonal portion:

$a^2+b^2=c^2$

Where a and b are the legs of the triangle and c is the diagonal.

Substitute the value of a = 10 and b = 8 in the above formula and solve for c, this will gives us the screen size.

$10^2+8^2=c^2$

$100+64=c^2$

$164=c^2$

$\sqrt{164} =c$

$12.80 =c$

The nearest whole number is 13.

Hence, the screen size to the nearest whole number is 13 inches.