Question

Please help. Trig: Laws of Cosines
If a rhombus whose side measures 6 and the smaller angle is 145*, find the length of the larger diagonal, to the nearest tenth.

Answer 1

Answer:

11.4

Step-by-step explanation:

d² = 6² + 6² - 2(6)(6)cos145

d² = 130.9789472

d = 11.44460341