A hollow garden roller 63 cm wide with a length of 440 cm is made of iron 4 cm thick.
What is the volume of the iron used ?
A hemispherical is made of steel, 0.25cm thick. The inner radius of the bowl is 5 cm. find the outer curved surface area of the bowl and also find the total surface area and volume.
A man has a rectangular garden 55x40m and he makes a 1m wide diagonal path as shown in the diagram. What is the area of the path?
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