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Therefore, The Curved Surface Area of Hemisphere =1/2 × 4 × πr 2. Curved surface area of a hemisphere = 2πr 2. Since a sphere is a combination of a curved surface and a flat base, to find the total surface area we need to sum up both the areas. The flat base being a plane circle has an area πr 2.
Find the curved surface area of a hemisphere whose radius is 7 cm. View Solution. Q 4. Find the total surface area of hemisphere of radius 7 cm. (Take π = 22 7 )
Click here:point_up_2:to get an answer to your question :writing_hand:find the total surface area of a hemisphere of radius 10 cm Find the curved surface area and total surface area of a hemisphere of radius 21cm.
In case of an ice-cream filled cone: Total surface area of the Ice-cream cone = Curved Surface Area of Hemisphere + Curved Surface Area of the Cone. Curved Surface area of a hemisphere = 2πr 2 and Curved Surface area of the cone = πrl. So, The Total Surface Area of Ice-cream Cone = 2πr 2 + πrl. Let’s take another example of a tent.
Total surface area of the hemisphere = 462 c m 2 Total surface area of the hemisphere = 2 π r 2 ⇒ 462 = 3 π r 2 ⇒ r = 7 cm Volume of hemisphere = 2 3 π r 3 V = 2 3 × 22 7 × 7 3 V = 718.67 c m 3
Find the total surface area of a hemisphere of radius 10 cm. (Use π=3.14) [1 mark] [RD Sharma] [ Surface ...
The outer surface of a hemisphere of radius 7 cm is to be painted. The total cost of painting at Rs 5 per cm 2 is Rs 2300. Reason (R) The total surface area of a hemisphere is 3π r2. (a) Both Assertion (A) and Reason (R) are true and Reason (R) is a correct
Curved Surface area of a hemisphere = 2 π r 2 = 2 × 22 7 × 21 × 21 = 2772 c m 2 Total surface area of a hemisphere = 3 π r 2 = 3 × 22 7 × 21 × 21 = 4158 c m 2 Was this answer helpful?
Find the total surface area of a hemisphere of radius 10 cm. (Use π = 3.14) Solution. Verified by Toppr.
The total surface area of a hemisphere of radius 7 cm is (a) (588π) cm 2 (b) (392π) cm 2 (c) (147π) cm ...
