The diagonals of a parallelogram are 26.5 m and 39.4 m. If they meet at an angle of 135.5°, find the length of the shorter side of the parallelogram. (Round your answer to one decimal place.)

Answer 1

By cosine law shortest side is (13.25² + 19.7² - 2·13.25·19.7cos44.5°)^1/2 = 13.83 m