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This is model question papers
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Step-by-step explanation:
17 ) ø = 30°
sin ∅ = opp/hyp = BC/AC
sin(30)° = 6/AC
1/2 = 6/AC
AC = 6×2
AC = 12 cm opt B
18) sin²o + cos²o = 1 opt.D
19 ) {x1 + x2 /2 , y1 + y2 / 2} opt B
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