Answer:
1. 16.8 ft
2. 39.4 ft
3. 50.9 cm
4. 14.4 m
Step-by-step explanation:
1. X² = 15² + 7² - 2(15)(7)cos92
X² = 281.3288943
X = 16.77286184
2. AB² = 25² + 30² - 2(25)(30)cos91
AB² = 1551.17861
AB = 39.38500488
3. AB² = 24.4² + 29.4² - 2(24.4)(29.4)cos142.1
AB² = 2591.834718
AB = 50.910065
4. BC² = 13.1² + 10.3² - 2(13.1)(10.3)cos74.8
BC² = 206.9456283
BC = 14.3856049
