=r Given, A and B are two points on L which is at a distances of 4 units from P ∵ Take values of r=4 and -4 A‌=(r‌cos‌60∘+1,rsin‌60∘+2)‌ and ‌ B‌=(−r‌cos‌60∘+1,−rsin‌60∘+2) A‌=(4⋅‌
1
2
+1,4‌
√3
2
+2)=(3,2√3+2) B‌=(−4⋅‌
1
2
+1,−4‌
√3
2
+2) ‌=(−1,−2√3+2) Now area of △OAB is 4−2√3