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Practice: Sine Law

A blue jay and a woodpecker are chilling in their nests that are the same height above the ground and 20m apart. They both spot a worm on the ground at the same time. The angle of depression from the blue jay to the worm is 45°45\degree and the angle of depression from the woodpecker to the worm is 50°50\degree. How far is each bird from the worm?

Practice: Sine Law


3 friends Adam, Ben, and Cat are playing frisbee golf in a park. They are standing in a triangle, where Adam and Ben are 12m apart, the angle formed at Adam is 50°50\degree, and the angle formed at Cat is 60°60\degree.

a) How far apart are Ben and Cat?

b) What is the triangular area they are covering?

Practice: Sine Law

Identical twins Chris and Liam are standing in a line in front of a giant oak tree, where Chris is 5 meters in front of Liam. The angle of elevation from Liam to the top of the tree is 30°30\degree and the angle of elevation from Chris to the top of the tree is 60°60\degree. If Chris and Liam are both 1.8 meters tall, how tall is the giant oak tree?