Three cubes each of side 2.5 cm are joined end to end. The surface area of resulting solid is
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the figure is form there is a cuboid then the length of cuboid is 7.5cm and the breadth and height is 25 cm
Then surface area of cuboid is 2(lb+bh+hl)
2 (7.5×2.5+2.5×2.5+2.5×7.5)cm^2
Then surface area of cuboid is 2(lb+bh+hl)
2 (7.5×2.5+2.5×2.5+2.5×7.5)cm^2
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if two cube connected with each other then it formed cuboid .
breadth = 2.5 cm height = 2.5 cm length = 5 cm
volume of cuboid = l*b*h
volume of cuboid = 2.5 *2.5 *5
volume of cuboid =31.25 cm³
hope it help you
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