Question

CAN ANYONE GIVE ME ALL FORMULAS OF CLASS 8 MENSURATION NCERT ?​

Answer 1

Area of rectangle (A) = length(l) × Breath(b), A = l× b.

Perimeter of a rectangle (P) = 2 × (Length(l) + Breath(b)), P = 2 × (l + b)

Area of a square (A) = Length (l) × Length (l), A = l×l.

Perimeter of a square (P) = 4 × Length (l), P = 4 ×l.

Answer 2

Step-by-step explanation:

Area of Trapezium =height x (sum of parallel sides)/2

Area of Rhombus =½ x d1 x d2

Area of Special Quadrilateral= ½ x d x (h1 + h2)

Surface area of Cuboid =2(lb x bh x hl)

Surface area of Cube =6a2

Surface area of cylinder =2πr(r + h)

Volume of Cuboid= l × b × h

Volume of Cube =a3

Volume of cylinder =πr2h

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