Question

A wooden plank is in the shape of cuboid,with dimensions 25×10×5.on the top of it, three conical holes each of radius 2.5cm and depth 5cm are made. Find the volume of remaining wooden plank. (Take Π=3.14)​

Answer 1

Step-by-step explanation:

a wooden plank is in the shape of cuboid volume of cuboid is equal to lbh is equal to 25 into 10 into 5 is equal to 1250

volume of three conical holes equal to 1 by 3 Pi R squared h is equal To Pi into R square into h easy equal to 3.14 into 2.5 square into 5 is equal to 3.14 into 6.25 into 5 is equal to 98. 125 then volume of remaining wooden plank is equal to 1250 -98.125 is equal to 1151.75