Two cubes of edge 5 cm are joined to form a cuboid. Find the total surface area of the cuboid.
Two cubes of edge 5 cm are joined to form a cuboid. Find the total surface area of the cuboid.
5 सेमी भुजा वाले दो घनों को जोड़कर एक घनाभ बनाया गया है। घनाभ का कुल पृष्ठीय क्षेत्रफल ज्ञात कीजिए।
Detailed Solution & Logic
Correct Answer:
$250 cm^2$
Two cubes each of edge 5 cm are joined face to face.
New cuboid dimensions:
Length = $5 + 5 = 10$ cm
Breadth = 5 cm
Height = 5 cm
Total surface area of cuboid:
$= 2(lb + bh + hl)$
$= 2(10 \times 5 + 5 \times 5 + 10 \times 5)$
$= 2(50 + 25 + 50)$
$= 2 \times 125 = 250$ cm²
Final Answer: 250 cm²
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