Question

all formulas of mensuration

Answer 1

area of trapezium=1/2 x (a+b) x h sq units (1/2 x sum of parallel sides x distance between them)
area area of quadrilateral=1/2 x d (h1 + h2) (1/2 x diagonal x sum of altitudes drawn on the diagonal from the other two vertices)
surface area of cube:total surface area of cube
2(l x l + l x l + l x l )sq. units
:lateral surface area of cube
2(l x l + l x l )
surface area of cuboid:TSA
2(lb + bh + lh) sq. cm
:LSA
2(l + b)h sq cm

   

Answer 2

area of trapezium=1/2 x (a+b) x h sq units (1/2 x sum of parallel sides x distance between them)
area area of quadrilateral=1/2 x d (h1 + h2) (1/2 x diagonal x sum of altitudes drawn on the diagonal from the other two vertices)
surface area of cube:total surface area of cube
2(l x l + l x l + l x l )sq. units
:lateral surface area of cube
2(l x l + l x l )
surface area of cuboid:TSA
2(lb + bh + lh) sq. cm
:LSA
2(l + b)h sq cm
..


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