Label angles as right obtuse or acute. SAT Math Help Geometry Plane Geometry Triangles Acute Obtuse Triangles Example Question 141. Geometry is all about shapes and their properties.
Simple Right Acute or Obtuse Angles.
Angles can also be classified as acute right and straight depending on the measure. Since D D must lie on either side of perpendicular dropped from F to B C one of the two angles E D F is acute while other E D F is obtuse. An obtuse-angled triangle is a triangle in which one of the interior angles measures more than 90 degrees. An obtuse angle is a type of angle that is always larger than 90 but less than 180.