SOLUTION: One side of an isoceles triangle whose perimeter is 42 units measures 10 units. Find the area of the triangle.

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Question 1061542: One side of an isoceles triangle whose perimeter is 42 units measures 10 units. Find the area of the triangle.
Answer by ikleyn(52887) About Me  (Show Source):
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One side of an highlight%28cross%28isoceles%29%29 isosceles triangle whose perimeter is 42 units measures 10 units.
Find the area of the triangle.
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Under the given condition, the sides of the triangle are 10, 16 and 16 units.

The height is sqrt%2816%5E2+-+%2810%2F2%29%5E2%29 = sqrt%28256-25%29 = sqrt%28231%29.

The area is %281%2F2%29%2A10%2Asqrt%28231%29.