Answer:
j²=k²+l²-2klCosJ
j²=430²+590²-2(430)(590)Cos117
j=874cm
Step-by-step explanation:
Use the formula of triangles.
make sure to square root at the second last step where j²=763 354,7797
therefore your answer will be 874cm if you round off correctly to the nearest centimeter.
