Identify and calculate the area for each triangle 1-6

Formula For calculating the area for triangle is base length times height divided by two. In this case, it’ll be ‘a’ x ‘b’ divided by 2.

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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.