Answer:
461.875 cubic cm
Step-by-step explanation:
Volume of wood in the block
= volume of cuboid - 3 times the volume of one hemisphere
[tex]=lbh - 3\times \frac{2}{3} \pi r^3\\= 20\times 7\times 4 - 2\times 3.14\times (2.5)^3\\= 560 - 6.28\times 15.625\\= 560 - 98.125\\= 461.875 \: cm^3[/tex]
