Q.
In the arrangement shown, co-ordinates of L-Shaped sheet are
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a
135 cm, 158 cm
b
1711 cm, 1711 cm
c
72 cm, 72 cm
d
1914 cm, 1914 cm
answer is D.
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Detailed Solution
(4)A1=4 × 1 cm2=4cm2x1=12 cm, y1=2cmA2=3 × 1 cm2=3cm2x2=1+32cm=52cm, y2=12cm∴ xC=A1x1 + A2x2 A1+A2=4 × 12 + 3× 524+3 cmxC=1914cmyC= A1y1 + A2y2 A1+A2=4 × 2 + 3× 124+3 cm = 1914 cm.
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