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Help your students prepare for their Maths GCSE with this free angles worksheet of 20+ questions and answers
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An angle is formed when two lines or rays intersect at a point. When measuring angles and drawing angles, we use a protractor and measure in degrees. When reading protractors, we give answers to the nearest whole degree.Β
It is important that students can identify angles such as acute, reflex, obtuse and right angles. We classify angles based on their size: an angle measuring less than 90Β° is an acute angle, greater than 90Β° but less than 180Β° is an obtuse angle, and greater than 180Β° is a reflex angle. An angle of exactly 90Β° is called a right angle.
Other angle facts that students need to know include: angles on a straight line and angles in a triangle add to 180Β°, angles in a quadrilateral add to 360Β°, and opposite angles in a parallelogram are equal. Students are expected to find the size of missing angles by selecting the appropriate angle fact and then using subtraction. Complementary angles are a pair of angles whose sum is 90Β°, and supplementary angles are a pair of angles whose sum is 180Β°.
When a pair of parallel lines is cut with an intersecting line (called a transversal), corresponding angles and alternate angles are formed.Β
Looking forward, students can then progress to additional angles worksheets and otherΒ geometry worksheets, for example anΒ angles in polygons worksheetΒ orΒ volume and surface area of spheres worksheet.
For more teaching and learning support on Geometry our GCSE maths lessons provide step by step support for all GCSE maths concepts.Β
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