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Surface Area of Hemi (Semi) Sphere

Ramakrishna Dhooli
20/12/2018 0 0

Image result for Sphere

If, the radius of a sphere=r

Then,

1)CURVED SURFACE AREA OF SEMI(HEMI) SPHERE= 2πr2

2)TOTAL SURFACE AREA OF SEMI(HEMI) SPHERE= 3πr2

Ex;-

If,radius of a sphere=r=14cm

1)CURVED SURFACE AREA OF SEMI(HEMI) SPHERE= 2πr2

 

                                                                              =2X(22/7)X14X14

                                                                                            =2x22X2x14

                                                                                            =1232cm2  

    2)TOTAL SURFACE AREA OF SEMI(HEMI) SPHERE= 3πr2               

                                                                                          =3X(22/7)X14X14

                                                                                            =3x22X2x14

                                                                                            =1848 cm2  

                

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