Search results
Question 15 If two solid hemispheres of same base radius r are joined together along their bases the curved surface area of this new solid is (A) 4 π r 2 (B) 6 π r 2 (C) 3 π r 2 (D) 8 π r 2 View Solution
Curved Surface Area of a hemisphere of radius 'r' = 2 π r 2 Total Surface Area of a hemisphere of radius 'r' = 3 π r 2 Hence, required difference = 3 π r 2 − 2 π r 2 = π r 2 = 22 7 × 21 × 21 = 1386 c m 2
Curved surface area of a hemisphere of radius ' r ' = 2πr2Given, CSA of the hemisphere 2× 22 7 ×r2 = 9051 7 = 6336 7Therefore, r = 12 cmVolume of a hemisphere of radius 'r' = 2 3πr3 = 2 3× 22 7 ×12×12×12 =3620.57 cm3. Was this answer helpful? The volume of a hemisphere is 24251 2 cm3. Find its curved surface area.
If two solid-hemisphere s of same base radius r are joined together along their bases , then curved surface area of this new solid is (a) 4 πr 2 (b) 6 πr 2 (c) 3 πr 2 (d) 8 πr 2 View Solution
A hemisphere bowl is made of steel, 0.25 c m thick. the inner radius of the bowl is 5 c m. Find the outer curved surface area of the bowl. Find the outer curved surface area of the bowl. View Solution
If the radius of a solid hemisphere is $$5\ cm$$, then find its curved surface area and total surface area $$(\pi=3.14)$$
Sep 15, 2020 · The total curved surface area of the figure will be. Total curved surface area = Curved surface area of cylinder+2*curved surface area of the hemisphere. Total surface area = 2πrh+2*2πr². where, r is the radius and h is the height of the cylinder and π is a constant. Total surface area = 2πr(h+2r) sq. units. Hence, the total surface area ...
