Question

write the formula of volume, curved surface area, total surface area for 1. cuboid 2.cylinder (solid and hollow ) 3. cube 4. cone​

Answer 1

Answer:

Volume of cuboid=lbh

Curved surface area =2(l+b) h

total surface area=2(lb+bhi+hl)

volume of cylinder=πr2h

curved surface area of cylinder=2πrh

total surface area=2πr(h+r)

cube

volume=a3

CSA=4a2

TSA=6a2

Cone

volume=1/3πr2h

CSA=πrl

TSA=πr(l+r)

Answer 2

━━━━━━━━━━━━━━━━━━━━━━━━━

$\bf\Huge\red{\mid{\overline{\underline{ ANSWER }}}\mid }$

━━━━━━━━━━━━━━━━━━━━━━━━━

$\Large\fbox{\color{purple}{QUESTION}}$

SURFACE AREA VOLUME FORMULAS

━━━━━━━━━━━━━━━━━━━━━━━━━

$\Large\fbox{\color{purple}{ SOLUTION }}$

$\Large\mathcal\purple{CUBOID}$

$\implies \: lsa = 2(l + b)h \\ \\ \: \implies \: tsa = 2(lb + bl + hl) \\ \\ \implies \: volume \: = l \times b \times h$

$\Large\mathcal\blue{CUBE}$

$\implies \: lsa = {4a}^{2} \\ \\ \implies \: tsa = {6a}^{2} \\ \\ \implies \: volume = {a}^{3}$

$\Large\mathcal\brown{CYLINDER}$

$\implies \: csa = 2\pi \: r \: h \\ \\ \implies \: tsa = 2\pi \: r(r + h) \\ \\ \implies \: volume \: = \pi \: {r}^{2} h</p><p>$

$\Large\mathcal\orange{CONE}$

$\implies \: tsa \: = \: \pi \: r \: (l + r) \\ \\ \implies \: csa \: = \pi \: r \: l\\ \\ \implies \: volume \: = \frac{1}{3} (\pi \: {r}^{2} h)$

━━━━━━━━━━━━━━━━━━━━━━━━━

$\bf\Large\red{ THANKS \: FOR \: YOUR}$

$\bf\Large\red{ QUESTION \: HOPE \: IT }$

$\bf\Large\red{ HELPS }$

$\Large\mathcal\green{FOLLOW \: ME}$

━━━━━━━━━━━━━━━━━━━━━━━━━