Question

You are sailing from your lakeshore cabin to a marina 60� north of east and 0.5 miles across the lake. on your return trip, you decide to sail directly south and then west to get back to your cabin. a right triangle. the hypotenuse is 0.5, and an angle is 60 degrees. which of the following expressions uses the complementary angle of 60� to determine how far you would travel on your trip west? a. 0.5cos30� b. 0.5cos60� c. 0.5sin30� d. 0.5sin60�

Answer 1

Complement of 0 degrees is 30 degrees

so answer is a or c

.5 sin 30 would give the west component as sin = opp leg/ hypoteuse in a right triangle...

Answer 'c'