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وارد شوید

Mathematics for IGCSE & O level - Angles (Section 3 - No. 42)

In a triangle with angles x, 2x, and 3x, what kind of triangle is it?
Acute
Obtuse
Right
Equilateral

توضیح

x+2x+3x=180, 6x=180, x=30, then 3x=90, this means one angle is 90, that is a right angle.

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