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in a combined solid of cone and cylinder if height of cylinder is h unit and height of cone is h/2 unit then find total surface area and volume of combined solid |
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Answer» I PROMISE I WILL FOLLOW YOU IF YOU MARK AS BRAINLIST THANKS FOR QUESTION
YOUR ANSWER IS For all figures, r=7 cm l (SLANT height)= h (height of cylinder)=4 cm T.S.A of the FIGURE= C.S.A of Cone+C.S.A of cylinder +C.S.A of hemisphere. CSA of cone: πrl=(3.14)×(7cm)×(4CM)=87.92 cm 2
CSA of cylinder: 2πrh=(2)×(3.14)×(7cm)×(4cm)=175.84 cm 2
CSA of hemisphere: 2πr 2 =(2)×(3.14)×(7cm) 2 =307.72 cm 2
Adding all: TSA of figure= 571.48 cm 2 |
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