1.

In figure the object is made of two solids- a cube and a hemisphere. The base of the figure is a cube with edges of 5 cm and the hemisphere fixed on the top has a diameter of 4.2 cm find the total surface area of the object. (take π = 22/7​

Answer»

the total surface area of the object= 162.57 cm2Step-by-step explanation: GIVEN: diameter of hemisphere = 4 cm radius = 2 cm Length of cube = 5 cm Breadth of cube = 5 cm Height of cube = 5 CMT. S. A of the object = T. S. A of cube + C. S. A of hemisphere - BASE area of hemisphere = 6a^2 + 2πr^2 - πr^2 = 6(5) ^2 + 22/7*2*2= 150+ 12.57= 162.57____Hope it helped you____



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