math

posted by .

The sides of a parallelogram are 15 ft and 17 ft. One angle is 40° while another angle is 140°. Find the lengths of the diagonals of the parallelogram (to the nearest tenth of a foot)

  • math -

    for the long diagonal
    LD^2 = 15^2 + 17^2 - 2(15)(17)cos140°

    solve for LD

    let me know what your equation is for the short diagonal.

  • math -

    one side of a parallelogram is 10 inches long and makes angle 45 and 60 with short diagonal and the other side respectively. Find the length of the other side.?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. geometry theorems

    I have six questions which will be on a test two weeks from now, and I do not understand. Help me find out these theorems for the blanks. 1. If one pair of consecutive sides of a parallelogram are congruent, then the parallelogram …
  2. trig

    The lengths of 2 adjacent sides of a parallelogram are 42 cm and 36cm. an angle of the parallelogram is 4o degrees. Find the measure of the longest diagonal to the nearest tenth of a centimeter.
  3. geometry

    In parallelogram ABCD, BC = 8, DC = 12, and measure of angle D is 50 degrees. Find the area of the parallelogram to the nearest tenth.
  4. Trig

    The diagonals of a parallelogram intersect at a 42◦ angle and have lengths of 12 and 7 cm. Find the lengths of the sides of the parallelogram. (Hint: The diagonals bisect each other.)
  5. math

    THe area of a parallelogram is 594, and the lengths of its sides are 32 and 46. Determine, to the nearest tenth of a degree, the measure of the acute angle of the parallelogram
  6. Math

    A parallelogram has an angle of 50 degs and sides of 5 and 10 inches. What are the lengths of the diagonals?
  7. Pre cal

    A parallelogram has sides of lengths 7 and 4, and one angle is 55°. Find the lengths of the diagonals. (Round your answers to two decimal places. Enter your answers as a comma-separated list.)
  8. Math

    The lengths of two sides of a parallelogram are 7.4cm and 9.2cm and one of the diagonals has a length of 6.2 cm. Find the area of the parallelogram.
  9. Trigonometry

    The lengths of the diagonals of a parallelogram are 20 inches and 30 inches. The diagonals intersect at an angle of 35 degrees. Find the lengths of the parallelograms sides to the nearest hundredth.
  10. Trigonometry

    The lengths of the diagonals of a parallelogram are 20 inches and 30 inches. The diagonals intersect at an an angle 35 degrees. Find the lengths of the parallelogram's sides lengths to the nearest hundredth.

More Similar Questions