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Trigonometric Relationships · Part 2 of 2
3 exam-style questions with model answers, plus 4 quick multi-choice questions — every question on this part of the standard, grouped by the 1 page of notes they come from.
Write a full answer before you reveal the model one. That comparison is where the learning happens.
A sector of a circle has radius 9 cm and a centre angle of . Find the arc length and the sector area.
A fan-shaped window is a sector with an area of 2.4 m2 and a radius of 1.8 m. Find the angle at the centre and the total length of framing needed around the window.
A goat is tethered by a 6 m rope to the corner of a rectangular barn measuring 4 m by 10 m, on the outside. Find the total grazing area available to the goat.