The shape of a badge is a sector ABC of a circle with centre A and radius
Question:
The shape of a badge is a sector ABC of a circle with centre A and radius AB, as shown in the diagram. The triangle ABC is equilateral and has perpendicular height 3 cm.
a. Find, in surd form, the length of AB.
b. Find, in terms of π, the area of the badge.
c. Prove that the perimeter of the badge is 2√3/3(π + 6)cm.
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a 23 cm b ...View the full answer
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Related Book For 
Pearson Edexcel A Level Mathematics Pure Mathematics Year 2
ISBN: 9781292183404
1st Edition
Authors: Greg Attwood, Jack Barraclough, Ian Bettison, David Goldberg, Alistair Macpherson, Joe Petran
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