(c) Using ruler and compasses only, in the space below construct the equilateral triangle \(ABC\) with sides of length 7 cm. You must show all your construction lines.
Side \(AB\) has already been drawn for you.(2)
Mark scheme (a)
Scheme
Marks
12
B1
(1)
Mark scheme (b)
Scheme
Marks
8
B1
(1)
Mark scheme (c)
Scheme
Marks
Two intersecting arcs with equal radius
M1
Correct equilateral triangle with arcs
A1
(2)
(4 marks)
Notes
M1: For arcs that intersect within guidelines or correct equilateral triangle drawn without arcs