SOLUTION: Find to the nearest integer the area of an isosceles triangle if the measure of the vertex angle is 42 degrees and the measure of each of the congruent sides is 12.
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Question 403821: Find to the nearest integer the area of an isosceles triangle if the measure of the vertex angle is 42 degrees and the measure of each of the congruent sides is 12. Found 2 solutions by Alan3354, richard1234:Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! s = 2*12*sin(42/2)
s =~ 8.6 = base
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h = 12*sin((180-42)/2) = 12*sin(69)
h =~ 11.2
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Area = bh/2
Area =~ 48 sq units
