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.
Whether the isosceles triangle is acute, right or obtuse depends on the vertex angle. In Euclidean geometry, the base angles cannot be obtuse (greater than 90Â°) or right (equal to 90Â°) because their measures would sum to at least 180Â°, the total of all angles in any Euclidean triangle.