Choose the version of the cosine law that will determine the side length  $d$  

Choose the version of the cosine law that will determine the side length  $e$  

Choose the version of the cosine law that will determine  $\angle\ C$   (angle C)

Choose the version of the cosine law that will determine  $\angle\ B$  (angle B)

Use the cosine law to determine the length of  $c$  . Round the answer to the nearest tenth of the unit.

Determine the side length of  $d$  using the cosine law. Round your answer to the nearest tenth of a unit. 

Use the cosine law to determine the measure of  $\angle A$  (angle A). Round your answer to the nearest degree. 

Use the cosine law to determine the measure of  $\angle D$  (angle D). Round your answer to the nearest degree. 

Use the cosine law and the diagram provided to determine the distance between the two planes. Round your answer to the nearest unit.