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Form an equation in x and solve

Form an equation in x and solve-example-1
User SAFAD
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1 Answer

1 vote

Answer:

x+(90°-0.5x)=3x

Explanation:

Each of the two unknown angles in the triangle is 90°-0.5x because the triangle is isosceles.

So, by the exterior angle theorem, x+(90°-0.5x)=3x.

User Agnieszka
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