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anemone
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Let $ABC$ be an isosceles triangle such that $AB=AC$. Find the angles of $\triangle ABC$ if $\dfrac{AB}{BC}=1+2\cos\dfrac{2\pi}{7}$.
An isosceles triangle is a type of triangle that has two equal sides and two equal angles. It is also known as a "two-sided equal triangle".
An isosceles triangle can be identified by its two equal sides and two equal angles. It can also be identified by its symmetrical shape, where the base angles are equal.
The Isosceles Triangle Challenge is a mathematical problem where the goal is to find the missing side or angle of an isosceles triangle given the measurements of the other sides and angles.
Some properties of an isosceles triangle include:
The Isosceles Triangle Challenge can be solved by using the properties of an isosceles triangle and applying basic geometry formulas such as the Pythagorean theorem and the sum of angles in a triangle. It can also be solved using trigonometric functions such as sine, cosine, and tangent.