I don't understand how to find the perimeter?
Why the volume of pyramid needed to be multiply by 1/2 when the formula is 1/3xyz?
Why need to multiply by 2 for the cylindrical mould?
How to do this question?
I cant find the angle
The diagram below shows a right prism. Trapezium BCFG is the uniform cross section of the prism. A hemisphere with radius 3.5 cm is taken out of the solid. Calculate the volume, in cm^3 , of the remaining solid.
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