Question

Writ the formula of ch surface area and volume

Answer 1

Answer:

the formula for surface area is 2 (lb+bh+lh)

volume =l×b×h

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Answer 2

CUBE:

C.S.A = 4a²

T.S.A = 6a²

Volume  = a³

CUBOID:

C.S.A = 2(lh+bh)

T.S.A = 2(lb+bh+hl)

Volume = lbh

CYLINDER:

C.S.A =  2πrh

T.S.A = 2πr(r+h)

Volume = 2πr²h

CONE:

C.S.A = πrl

T.S.A = πr(l+r)

Volume = ¹/₃πr²h

SPHERE:

T.S.A = 4πr²

Volume = ⁴/₃πr³

HEMISPHERE:

C.S.A = 2πr²

T.S.A = 3πr²

Volume = ²/₃πr³

FRUSTUM:

C.S.A = π(r+R)l

T.S.A = πl(r+R)+π(r²+R²)

Volume = ¹/₃π(r²+R²+rR)h

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