Question

if the C.S.A of cube is 64m².then cube is​

Answer 1

Correct question:-

• If the C.S.A of cube is 64m². Then edge of cube is_____.

Given:-

• Curved surface area = 64 m²

To Find:-

• Edge (a) of the Cube

Formula used:-

• CSA of Cube = 4a²

Solution:-

$CSA\: of\: Cube\: = 4a²$

$⟹64 = 4a²$

$⟹a² = \dfrac{64}{4}$

$⟹a² = 16$

$⟹a= \sqrt{16}$

${\boxed{⟹a= 4cm}}$

Hence, The edge of the given Cube is 4 cm.

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Answer 2

RIGHT QUESTION :-

$\large\bold\pink{IF \: THE \: C.S.A \: OF \: CUBE \: IS \: 64 m^2 \: SO~WHAT~IS~THE~EDGE~OF~CUBE}$

GIVEN :-

$\large \bold \pink{ CURVED~SURFACE~AREA=64m {}^{2} }$

TO FIND :-

$\large \bold \pink{EDGE ~OF ~CUBE }$

FORMULA WILL USE :-

$\large \bold \pink{C.S.A \: OF \: CUBE = 4 a^2} \:$

SOLUTION :-

$\bold \orange{C.S.A \: OF \: CUBE = 4a^2}$

$\: \: \: \: \: \bold \red\rightsquigarrow \bold \red{64 = 4a {}^{2} }$

$\: \: \: \: \: \bold \red\rightsquigarrow \bold \red{a {}^{2} = \frac{64}{4} }$

$\: \: \: \: \: \bold \red\rightsquigarrow \bold \red{a {}^{2} = 16 }$

$\: \: \: \: \: \bold \red\rightsquigarrow \bold \red{a = \sqrt{16} }$

$\: \: \: \: \: \bold \orange\rightsquigarrow \bold \orange{a = 4 \: cm}$

HENCE THE EDGE IS 4 CM :)