Question 95
Δ LMN is right angled at M. If m ∠N = 45°. What is the length (in cm) of MN, if NL = 6√2 cm?
Solution
(diagram)
cos N = x/6√2
cos 45° = x/6√2
1/√2 = x/6√2
x = 6
So the answer is option D.
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