1 Without proper scans of teeth, there is a danger of permanent nerve damage. 2  Carol Russell, 46, from Birmingham, can't even kiss her children. 3  Her wisdom tooth was removed in 2008 but several operations couldn't stop the pain.  Wisdom tooth extraction is one of the most common procedures in the UK.
An isosceles triangle is a triangle with two congruent sides and congruent base angles. congruent means equal. No matter which direction the triangle's apex, or peak, points, it's an isosceles triangle if two of its sides are congruent. Note the hash marks that indicate congruency. Any sides or angles with the same number of hashes through them are congruent.
An isosceles triangle is a triangle with (at least) two equal sides. It is the equal sides characteristic that defines the isosceles triangle, not two equal angles. True, we can show that, if there are two equal sides, there must also be two equal angles. But the definition is about the sides, not the angles. By the way, the cited source also says that an equilateral triangle is just a special case of the isosceles.