<h2> calm down !!!</h2><h2></h2><h3>we know that the volume of cuboid is l×b×h</h3><h3>=10×(10-2)×9</h3><h3>=10×8×9</h3><h3>=720</h3><h3 /><h3>now again the volume of cuboid (bottom) is l×b×h</h3><h3>=12×9×2</h3><h3>=216</h3><h3 /><h3>the total volume is cuboid(up) + cuboid (bottom)</h3><h3>=720+216</h3><h3>=936 which is b</h3>
