Question

please help me friend in maths

Answer 1

hence proved MOC = ABC

Answer 2

Step-by-step explanation:

ANSWER EXPLANATION: The volume of the grain silo can be found by adding the volumes of all the solids of which it is composed (a cylinder and two cones). The silo is made up of a cylinder (with height 10 feet and base radius 5 feet) and two cones (each with height 5 ft and base radius 5 ft). The formulas given at the beginning of the SAT Math section:

Volume of a Cone

V=

1

3

πr2h

Volume of a Cylinder

V=πr2h

can be used to determine the total volume of the silo. Since the two cones have identical dimensions, the total volume, in cubic feet, of the silo is given by

Vsilo=π(52)(10)+(2)(

1

3

)π(52)(5)=(

4

3

)(250)π

which is approximately equal to 1,047.2 cubic feet.