![]() All the Angles in a square and a rectAngle are right Angles i.e, are equal to 90 degrees. If this right Angle is present in a triAngle, we call the triAngle a right-Angled triAngle. Right Angle: if an Angle measures exactly 90 degrees, then it is called a right Angle. So, the value of an obtuse Angle ranges from 90 degrees to 180 degrees. Obtuse Angle: An Angle measuring more than 90 degrees but less than 180 degrees is called an obtuse Angle. So, the value of an acute Angle varies from 0 to 90 degrees. ![]() Angles are commonly measured in terms of degree.Īngles are Classified According to Their Sizes as FollowsĪcute Angle: An Angle measuring less than 90 degrees is called an acute Angle. B is the point of intersection called the vertex and AB and BC are the sides of the Angle. An Angle is denoted by the symbol ∠.įrom the figure, ∠ABC is an Angle. When two lines intersect they form four Angles at the point of intersection. Various parts of an angle are vertex, arms, interior, and exterior angles. We know that two lines having a common vertex form an angle. An angle that measures 90 0 is a Complementary angle and whose measure is 180 0 is a Supplementary Angle. Patients were determined to have forefoot pathology, namely HV, according to Coughlin’s criteria.Complementary and Supplementary Angles are the two types of angles based on their measures. The HV angle and intermetatarsal angle were also measured by a single observer on all patients. Pronation of the M1 was recorded as a positive value whereas supination was recorded as a negative value. MPA was initially measured on WBCT for the entire cohort next, following a 1-day washout period, each observer then measured the MPA on WBR for the entire cohort. The data on these 10 patients were then cleared and remeasured at a separate time by each reader independently with both observers masked to the other’s measurements until final data analysis. The MPA of 10 initial patients were measured by each observer and compared immediately following measurement to ensure consistent landmarks were used. ![]() To ensure consistency in measurement technique, MPA was measured according to the methodology proposed by Scheele et al 14 on WBCT and described by Saltzman et al 13 on WBR ( Figures 1 and 2). MPA for each patient was measured by 2 trained observers (a postgraduate year 3 orthopaedic resident and fourth-year medical student) on a PACs system (IntelliSpace Radiology 4–Enterprise, v.4.5.4.2 Philips Healthcare Informatics, Foster City, CA). All subjects Allied Health Cardiology & Cardiovascular Medicine Dentistry Emergency Medicine & Critical Care Endocrinology & Metabolism Environmental Science General Medicine Geriatrics Infectious Diseases Medico-legal Neurology Nursing Nutrition Obstetrics & Gynecology Oncology Orthopaedics & Sports Medicine Otolaryngology Palliative Medicine & Chronic Care Pediatrics Pharmacology & Toxicology Psychiatry & Psychology Public Health Pulmonary & Respiratory Medicine Radiology Research Methods & Evaluation Rheumatology Surgery Tropical Medicine Veterinary Medicine Cell Biology Clinical Biochemistry Environmental Science Life Sciences Neuroscience Pharmacology & Toxicology Biomedical Engineering Engineering & Computing Environmental Engineering Materials Science Anthropology & Archaeology Communication & Media Studies Criminology & Criminal Justice Cultural Studies Economics & Development Education Environmental Studies Ethnic Studies Family Studies Gender Studies Geography Gerontology & Aging Group Studies History Information Science Interpersonal Violence Language & Linguistics Law Management & Organization Studies Marketing & Hospitality Music Peace Studies & Conflict Resolution Philosophy Politics & International Relations Psychoanalysis Psychology & Counseling Public Administration Regional Studies Religion Research Methods & Evaluation Science & Society Studies Social Work & Social Policy Sociology Special Education Urban Studies & Planning BROWSE JOURNALS ![]()
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