RRB Assistant Loco Pilot and Technician Model Paper 15 with key

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Question : 41 of 100

Marks: +1, -0

Find the area of regular octagon with side 2 cm?

$(√2+1)cm^2$
$2(√2+1)cm^2$
$4(√2+1)cm^2$
$8(√2+1)cm^2$

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