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*10 POINTS* The length of the base of an isosceles triangle is 12 inches. Each base angle measures 50°. Which is a feasible plan to find the length of each congruent side of the…

*10 POINTS* The length of the base of an isosceles triangle is 12 inches. Each base angle measures 50°. Which is a feasible plan to find the length of each congruent side of the…
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*10 POINTS*

The length of the base of an isosceles triangle is 12 inches. Each base angle measures 50°. Which is a feasible plan to find the length of each congruent side of the triangle? Justify each step.

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User Collin Krawll
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7.8k points

1 Answer

5 votes
Draw the altitude from the vertex angle to the base of the triangle. Since the altitude is perpendicular to the base, 2 congruent right triangles are created. Then, use the cosine ratio to find the length of each congruent side.
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User KDV
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8.1k points
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