Question

write all the formula of areas and volume chapter 13​

Answer 1

$\Huge\bf\maltese{\underline{\green{Answer}}}\maltese$

$\large\bf{\underline{\red{CUBOID:-}}}$

TSA = 2(lb + bh + lh)

LSA = 2h(l + b)

Diagonal of a cuboid =√(l² + b² + h²)

Volume = L×b×h

$\large\bf{\underline{\red{CUBE:-}}}$

TSA = 2 × (3a²) = 6a²

LSA = 4a²

Diagonal of a cube =√3a

Volume = a³

$\large\bf{\underline{\red{CYLINDER:-}}}$

CSA = 2π × r × h

TSA = 2πr(h + r)

Volume = πr²h

$\large\bf{\underline{\red{RIGHT\: CIRCULAR \:CONE:-}}}$

CSA = πrl

TSA = CSA + area of base = πrl + πr2 = πr(l + r)

Volume = (1/3)πr²h

$\large\bf{\underline{\red{SPHERE:-}}}$

CSA = TSA = 4πr²

Volume = (4/3)πr³

• I Hope it's Helpful My Friend.