a pen stand made of wood in the shape of cuboid with four conical depression to hold pens . the diameter of the cuboid are 15 cm by 10 cm by 0.75. the diameter of each of the depression is 1 cm and the depth is 14 cm. find the volume of wood in the entire stand.
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Step-by-step explanation:
Volume of wood in stand=Volume of cunoid-4(Volume of each come)
Volume of Cuboid=l(b)(h)=112.5cm³
Volume of Cone=1/3πr²h
=1/3(22/7)(1/2)²14
=3.6cm³
Volume of wood in stand=112.5-4(3.6)=112.5-14.4=98cm³.
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