Post a New Question

Math

posted by .

screen sizes (TVs, computers) are given by measuring the length of the diagonal. If the base length of a 40-inch TV is 32", what is the surface area of the TV screen?

  • Math -

    The base length, the screen height and the screen diagonal form a right-angle triangle.
    Therefore, you can use pythagorean theorem to calculate screen height:
    sqrt(40**2 - 32**2) = 24.0
    Then surface is length by height:
    32 * 24 = 768

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math

    The area of a 25 inch TV screen is 300 square inches. The area of a 40 inch TV screen is 768 square inches. The area of the smaller screen is what percent of the area of the larger screen?
  2. math

    screen sizes (TVs, computers) are given by measuring the length of the diagonal. If the base length of a 40-inch TV is 32", what is the surface area of the TV screen?
  3. Math

    A flat screen television is sized depending on the length of the diagonal (ex: a 40 inch flat screen has a 40 inch diagonal ). If a 32 inch television has a width that is 5 inches longer than its length. Determine the dimensions of …
  4. ALGEBRA

    The size of a television is given by the length of the diagonal of the screen. The ratio of the height to the width of wide flat-screen TV is 8:15. Find expressions for the width and height of a wide-screen TV in terms of the length …
  5. Algebra 1

    The size of a computer monitor is given by the length of the diagonal of the screen.The ratio of the height to the width of wide screen monitors is 9:16. Find the expressions for the width and height of a wide screen monitor in terms …
  6. Math

    A square television screen has 19-inch diagonal. How long is a side of the screen, to the nearest tenth?
  7. Math

    A square television screen has 19-inch diagonal. How long is a side of the screen, to the nearest tenth?
  8. math

    A computer monitor is 20 inches wide. The aspect ratio, which is the ratio of the width of the screen to the height of the screen, is 16:9. What is the length diagonal of the screen, to the nearest whole inch.
  9. math

    Laptop screen sizes are determined by the length of the diagonal portion of the screen. A laptop has a 12 inch width and the height measures 10 inches draw a diagram and calculate the screen size.
  10. Geometry

    1. Television screens are sized according to the length of a diagonal across the screen, from one corner to another. The screen of a 2 inch wide screen TV is 24.5 inch high. How wide is it?

More Similar Questions

Post a New Question