Question 141
A rectangular sheet of metal is 40 cm by 15 cm. Equal squares of side 4 cm are cut off at the corners and the remainder is folded up to form an open rectangular box. The volume of the box is
Solution
After cutting off squares of sides 4cm. from rectangular sheet of $$40 cm. \times 15 cm.$$and making a rectangular box
New dimentions of rectangular will be:
Base = $$32 cm. \times 7cm. $$
Height = $$4 cm. $$
Hence volume will be $$32 \times 7 \times 4$$ = $$896 cc$$
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