The dimensions of a cuboid are 10cm × 5cm × 6cm.Find (a) its volume, (b) its surface area,(c) its lateral surface area,and (d) the length of a diagonal.
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Step-by-step explanation:
Length = 10 cm.
Breadth = 5 cm.
Height = 6 cm.
volume of cuboid = length * breadth * height
(10) * (5) * (6)
300 cm³.
Total surface area = 2(lb + bh + hl)
2(10 * 5 + 5 * 6 + 6 * 10)
2(50 + 30 + 60)
280 cm².
Lateral surface area of a cuboid = 2h(l + b)
2 * 6(10 + 5)
12(15)
180 cm².
length of diagonal = √l² + b² + h²
=> √10² + 5² + 6²
=> √161
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5
Answer:
The acidic behaviour from acids is because of the presence of hydrogen ions. Hydrogen ions can only be produced in the presence of water and therefore water is definitely needed if acids are to show their acidic behaviour.
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