The diagonal of the tv screen is given by: d = root ((w) ^ 2 + (h) ^ 2) Where, w: width h: height In addition we have the following relationship: h / w = 8/15 Thus, For the width: d = root ((w) ^ 2 + ((8/15) w) ^ 2) For the high: d = root (((15/8) h) ^ 2 + (h) ^ 2) Answer: The expressions for the width and height of a wide-screen tv in terms of the length of its diagonal are: d = root ((w) ^ 2 + ((8/15) w) ^ 2) d = root (((15/8) h) ^ 2 + (h) ^ 2)
The decimal equivalent 1/5 is .2 Think of it like this. If you multiply the denominator (5) by 2 and the Numerator by 2 (1) You will get 2/10and 2/10 would be 20
