What is the width of a laptop 16: 9, if it has 15 inches?
Arrives on the frame
Only the screen width
36.3 x 21.5 cm
He has 15 inches as a diagonal
With the sentence of Pythagoras applies
So
The width is then 16x ≈ 33.2 cm and the height 9x ≈ 18.7 cm.
C = 15 inches (inch) = 38.1 cm
b = √ (c² / 337 × 256) = 33.21 cm
a = √ (c² / 337 x 81) = 18.68 cm