The martins swimming pool is a square and is in the center of a square plot that is 33 meters on a side. they have 1008 square meters of lawn. how long is a side of the pool?

40 & 50 in the right corner are the complementary angles as when placed in a sum (added together) they make 90°

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since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.