Question

✴️Stars and Mods please answer my Question and help me.

Give all the formulas used in chapter 11 of class 8 Maths - Mensuration.

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Answer 1

Answer:

$\huge\colorbox{yellow}{Answer\:-}$

$\small\underbrace\mathrm\red{Formula\:used\:in\:Mensuration}$

$\small{\underline{\textsf{\maltese\:{\red{Cuboid\:-}}}}}$

• Area = Length × Breadth

• Perimeter = 2( Length + Breadth)

• Volume = L × B × H

• Surface Area = 2(lb × bh × lh)

$\small{\underline{\textsf{\maltese\:{\red{Cube\:-}}}}}$

• Area of Square = 4a

• Surface Area = 6a^2

• Volume = a^3

$\small{\underline{\textsf{\maltese\:{\red{Cylinder\:-}}}}}$

• Surface Area = 2πr(r + h)

• Curved Surface Area = 2πrh

• Volume = πr2h

$\small{\underline{\textsf{\maltese\:{\red{Rest\:Formula\:-}}}}}$

• Area of Trapezium = h× (sum of parallel side) /2

• Area of Rhombus = 1/2 × d1 × d2

• Area of Special Quadrilateral = 1/2 × d × (h1+h2)

$\huge\colorbox{yellow}{Thank\:You}$

Answer 2

Answer:

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