Question

The advertised size of a computer or television screen is actually the length of the diagonal of

the screen. A computer screen measures 30cm by 22.5cm. Determine the length of its
diagonal.

Answer 1

37.5 cm

Explanation:

See attached for reference.

let the diagonal be x,

By Pythagorean formula:

x² = (22.5)² + (30)²

x = √[(22.5)² + (30)²]

x = 37.5 cm