(a) what is the perpendicular
distance from C to A ?
(b) write the coordinates of B
and C
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(a)let the perpendicular distance fròm C to OA touches at D.
So,CD=BA
In triangle CDO,
sin45°=CD/OC
1/$2=CD/4$2 ($=ROOT)
CD=4 units.
(b)coordinates of B will be(6,4) and C will be (4,4) as OD = 4.
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