A rectangular iron block is 40 cm long, 20 cm wide and 10 cm high. If it is melted and made into a square block, what is the length of one side?
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Step-by-step explanation:
Lateral surface area of a cuboid = 2 × height × (length + breadth). ... Example 9 : The parallel sides of a trapezium are 40 cm and 20 cm. If ... respectively are melted to form a single cube.
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Answer:
Answer:
volume of Block =volume of cube
l \times b \times h = a {}^{3}l×b×h=a
3
20 \times 10 \times 5 = a {}^{3}20×10×5=a
3
1000 = a{}^{3}1000=a
3
therefore
.
a=10cm
.
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