a cylinderical pipe is 28m long . its internal radius is 3.5cm and external radius is 5cm . calculate the volume in cm^3, the metal used in making the pipe . the volume of water in litre that the pipe can hold when full correct to 1 decimal place​

Vikram is studying the square pyramid below. on st to find the surface area of the pyramid, in square inches, vikram wrote (33.2) (34 ikram wrote (33.2)(34.2)+43(34.2)(284) what error did vikram make? o he used the same expression for the area of all four lateral faces. he used the wrong expression to represent the area of the base of the pyramid. o he used the wrong value as the height when he found the area of the lateral faces. he used an expression for surface area that only finds the total area of three faces.