Question

write the formulas of the lesson surface , areas, volumes

Answer 1

Answer:

Cuboid

Lateral Surface Area = 2(lh + bh) = 2 (l + b) h.

Total Surface Area = 2(lb + bh + lh)

Volume = l x b x h.

Step-by-step explanation:

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Answer 2

Answer:

. lateral surface area of cube = 4 × s × s

. Total surface area of cube = 6 × s × s

. surface area of cuboid = 2( lb + bh + hl)

. curved surface area of cylinder = 2πrh

. total surface area of cylinder = 2πr(r+h)

. curved surface area of cone = 1/2 × l × 2πr = πrl

. Total surface area of a cone = πrl + πr^2 = πr(l+r)

. surface area of sphere = 4πr^2

. curved surface area of hemisphere= 2πr^2

. Total surface area of a hemisphere= 3πr^2

. volume of cuboid = length × breadth × height

. volume of cube = a^3

. volume of a cylinder= πr^2h

. volume of cone = 1/3 πr^2h