Card 1 of 24
A complete turn is [ ], so a half-turn is π\piπ radians.
A
50π3 cm2\frac{50\pi}{3}\text{ cm}^2350π cm2.
B
A complete turn is 2π2\pi2π radians, so a half-turn is π\piπ radians.
C
22.422.422.4 cm.
D
It omits the two radii.
Card 1 of 24
3.4.1 Trigonometry (A-level only) Flashcards
24 flashcards on CCEA A Level Maths 3.4.1 Trigonometry (A-level only): the key formulae, methods and definitions you need to recall for AS 1, AS 2, A2 1 and A2 2.