Abuilding casts a shadow 30 m long. at the same time, the shadow cast by a 41-cm tall pole is 72 cm long. find the height of the building.

Easy points boii. read it. ya. fresh

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

What is the total surface area of this square pyramid?