Question

surface area and curved surface area of semicircle?​

Answer 1

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The area of a semicircle is half of the area of the circle. As the area of a circle is πr2. So, the area of a semicircle is 1/2(πr2 ), where r is the radius. The value of π is 3.14 or 22/7.

Answer 2

꧁ᗩᑎՏᗯᗴᖇ꧂

Surface Area of Hemisphere = 3 π r2

Curved surface area of hemisphere = 1/2 ( 4 π r2) = 2 π r2

ʷᵉ ᶜᵃⁿ ᶠⁱⁿᵈ ᵃʳᵉᵃ ᵒᶠ ˢᵉᵐⁱᶜⁱʳˡᶜˡᵉ ᵇᵗ ⁱᵗˣ ʰᵉᵐⁱˢᵖʰᵉʳᵉ