Question

list formulas of mensuration.
give the correct answer​

Answer 1

ᎷᎬᏁᏕᏬᏒᎯᎿᎨᎾᏁ ᎰᎾᏒᎷᏬᏝᎯ:-

Cuboid :-

• Lateral or curved surface area - 2( L+b )h
• Total surface area - 2( Lb+bh+hl )
• volume - Lbh

cube:-

• Lateral or curved surface area- 4L²
• Total surface area - 6L²
• volume- L³

Right circular cylinder :-

• Lateral or curved surface area-2πrh
• Total surface area-2πr (r+h)
• volume- πr²h

Right circular cone:-

• Lateral or curved surface area- πrL

L= √r²+h², where l= slant height

• Total surface area - πrL+πr²
• volume -1/3 πr²h

sphere:-

• Lateral or curved surface area- 4πr²
• Total surface area- 4πr²
• volume- 4/3 πr²

Hemisphere:-

• Lateral or curved surface area- 2πr²
• Total surface area- 3πr²
• volume- 2/3 πr³

Hollow cylinder:-

• Lateral or curved surface area- 2π( R+r) h

where R= external radius , r = internal radius

• Total surface area- 2π (R+r) +2π ( R²-r²)
• volume- π (R²-r²) h

Right circular cone:-

• Lateral or curved surface area- π (R+r) L
• Total surface area- πL (R+r)+πr²+πr²
• volume- 1/3 πh (R²+r²+Rr)