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Angle Sum Property

An triangle ...

Question

An triangle $A B C$ , with two base angles $60^{o}$ and $75^{o}$ then find the remaining angle.

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Solution

As we know the sum of interior angles of a triangle is $180^{o}$ .
Then the remaining angle of the triangle is $180^{o} - (75^{o} + 60^{o}) = 45^{o} .$

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