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Listed under:  Mathematics  >  Geometry  >  Shapes (Geometry)  >  Circles  >  Arcs
Interactive resource

Trig radians: introduction

Use radians to measure angles. Identify key angles in their radian form, for example π/6=30°. Convert angles in degrees (up to 360) to angles in radians. Solve measurement problems using angles in radians. Determine arc lengths using radians. This learning object is one in a series of seven objects. Three objects in the ...


Geometrical construction - mathematics activities

This is a photograph of a wall plaque, commemorating 'Life Members' of the Australian Association of Mathematics Teachers, made using a Reuleaux triangle shape. Although this shape is common in engineering design from drill bits to rotary engine construction (in an adapted form), it will be unfamiliar to many mathematics ...

Teacher resource

TIMES Module 13: Measurement and Geometry: construction - teacher guide

This is a 30-page guide for teachers that explains the central role of construction and presents examples of constructions.

Teacher resource

TIMES Module 26: Measurement and Geometry: circle geometry - teacher guide

This is a 44-page guide for teachers. It contains theorems on chords, arcs, angles and secants associated with circles.