Question

A rectangular television is 45 inches by 30 inches. What is the length of its diagonal?

Answer 1

54.1 inches (round to 1 dp)

Explanation:

the formula to calculate the diagonal or a rectangle is

`\sqrt{(w^(2) +l^(2))}`

30^2+45^2 is 2925

and
`√(2925)`

and the answer to that is 54.1 inches (to 1 dp)