Question

Volume, curved surface,total surface area of cube, cuboid, cylinder, cone, sphere,hemisphere,

Answer 1

Volume of cube

${a}^{3}$

Volume of cuboid

$l \times b \times h$

Volume of cylinder

$\pi {r}^{2} h$

volume of cone

$\frac{1}{3} \pi {r}^{2} h$

volume of sphere

$\frac{4}{3} \pi {r}^{3}$

curved surface area of cube

$4 {a}^{2}$

curved surface area of cuboid

$2(l + b)h$

curved surface area of cylinder

$2\pi rh$

curved surface area of cone

$\pi rl$

curved surface area sphere

$2\pi {r}^{2}$

total surface area of cube

$6 {a}^{2}$

total surface area of cuboid

$2(lb + bh + hl)$

total surface area of cylinder

$2\pi r(h + r)$

total surface area of cone

$\pi r(l + r)$

total surface area of sphere

$4\pi {r}^{2}$

total surface of hemispere

$3\pi {r}^{2}$

volume of hemisphere

$\frac{2}{3} \pi {r}^{3}$

Hope it helps mate...

Answer 2

⚘$\underline{\huge{ \rm \: Answer : - }}$

☘︎ Cube :-

☣ Volume of cube = a³

☣ Total surface = 6 × a²

☣ Curved surface area = 4 × a²

━━━━━━━━━━━━━━━━━━━━━━━━━

☘︎ Cuboid :-

☣ Volume of cuboid = l × b × h

☣ Total surface = 2(lb + bh + hl)

☣ Curved surface area = 2h(l + b)

━━━━━━━━━━━━━━━━━━━━━━━━━

☘︎ Cylinder :-

☣ Volume of cylinder = πr²h

☣ Total surface = 2πr(r + h)

☣ Curved surface area = 2πrh

━━━━━━━━━━━━━━━━━━━━━━━━━

☘︎ Cone :-

☣ Volume of cone = ⅓πr²h

☣ Total surface = πr(l + r)

☣ Curved surface area = πrl

━━━━━━━━━━━━━━━━━━━━━━━━━

☘︎ Sphere :-

☣ Volume of sphere = 4/3 πr³

☣ Total surface = 4πr²

☣ Curved surface area = 4πr²

━━━━━━━━━━━━━━━━━━━━━━━━━

☘︎ Hemisphere :-

☣ Volume of hemisphere = ⅔ πr³

☣ Total surface = 3πr²

☣ Curved surface area = 2πr²

★━━━━━━━━━━━━━━━━━━━━━━━

where,

• ⪼ a = side
• ⪼ l = length
• ⪼ b = breadth
• ⪼ h = height
• ⪼ r = radius

━━━━━━━━━━━━━━━━━━━━━━━★