the solid given below is made up of five identical cubes. If the volume of whole solid is 625 cm³, then the total surface area of the whole solid is:
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Answer:
550 cm²
Step-by-step explanation:
volume of solid = 625 cm³ (made of 5 cubes)
therefore, volume of one cube = 625/5 = 125 cm³
therefore, side of one cube = √(125) = 5cm
join all the five cubes in a line, forming a cuboid
dimensions of new cuboid:
L = 5*5 = 25cm
B = 5 cm
H = 5 cm
hence surface area = 2* (LB + BH + HL)
= 550 cm²
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