## An Angle on GeometryProvides sequential activities for ages 10+ in the area of geometry and spatial mathematics. Covers major learning areas such as identifying different types of angles, using a protractor to measure angles, using known rules to calculate the size of angles and constructing angles using either a compass or a protractor. Also covers a wide range of 2D objects, such as the angles of scalene, isosceles and equilateral triangles, parallel and intersecting lines and angles in a circle, and the mathematics of circles. |

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__________________ arc angle that measures ANGLES 1 Angles angles add Angles formed ANGLES IN CIRCLES angles that add arcs intersect Bisect change the width circle below draw clock face compass point Complementary angles CONSTRUCTING ANGLES degree angle diagram diameter draw a line end points equilateral triangle examples find the missing find the size hexagon hypotenuse intersecting lines isosceles triangles Label the angles Largest angle left Player lines to help look 90 major arc mark Measure the angles measures exactly 90 MEASURING ANGLES metres minor arc missing angles move 1 cm moving one square need a protractor obtuse or right pencil perimeter place the compass place the point protractor find Pythagoras quadrilateral add radii reflex angle right and move right angle right Player right triangle ruler rules you know scalene triangle SHAPES IN CIRCLES slide SNOOKER straight line Supplementary angles triangle is ule TRIANGLES IN CIRCLES turn 90 vertex