Question

if the leanght of a cube is 2cm than find the sharface area of the cube
​

Answer 1

Heyya!

Surface Area usually refers to Total Surface Area:

TSA of cube=6(a^2) , where a is the side of the cube

=6×2×2=24cm^2

Answer 2

${\bf{\huge{\underline{\boxed{\red{\mathcal{Answer}}}}}}}$

Given:

• Length of side of a cube = 2cm

To find:

• Surface Area of cube(TSA)

Solution:

$\setlength{\unitlength}{4mm}\begin{picture}(10,6)\thicklines\put(0,1){\line(0,1){10}}\put(0,1){\line(1,0){10}}\put(10,1){\line(0,1){10}}\put(0,11){\line(1,0){10}}\put(0,11){\line(1,1){5}}\put(10,11){\line(1,1){5}}\put(10,1){\line(1,1){5}}\put(0,1){\line(1,1){5}}\put(5,6){\line(1,0){10}}\put(5,6){\line(0,1){10}}\put(5,16){\line(1,0){10}}\put(15,6){\line(0,1){10}}\put(4.6,-0.5){\bf\large 2 cm}\put(13.5,3){\bf\large 2 cm}\put(-4,5.8){\bf\large 2 cm}\end{picture}$

TSA of cube = $6*side^2$

TSA of cube = $6*2^2$

TSA of cube = $6*4$

TSA of cube = $24cm^2$

Formula used:

• TSA of cube = $6*side^2$

Learn More:

• Volume of cylinder = πr²h

• T.S.A of cylinder = 2πrh + 2πr²

• Volume of cone = ⅓ πr²h

• C.S.A of cone = πrl

• T.S.A of cone = πrl + πr²

• Volume of cuboid = l × b × h

• C.S.A of cuboid = 2(l + b)h

• T.S.A of cuboid = 2(lb + bh + lh)

• C.S.A of cube = 4a²

• T.S.A of cube = 6a²

• Volume of cube = a³

• Volume of sphere = (4/3)πr³

• Surface area of sphere = 4πr²

• Volume of hemisphere = ⅔ πr³

• C.S.A of hemisphere = 2πr²

• T.S.A of hemisphere = 3πr²