Question

۔۔۔۔۔۔۔۔Give formulaes of Chapter of Mensuration plzz....​

Answer 1

Step-by-step explanation:

Formula

s = r \theta

s = arc length (in radians)

r = radius

\theta = central angle in radians

The area of a sector of a circle is ½ r² ∅, where r is the radius and ∅ the angle in radians subtended by the arc at the centre of the circle. So in the below diagram, the shaded area is equal to ½ r² ∅ .

Answer 2

Answer:

Area of Trapeziumheight x (sum of parallel sides)/2Area of Rhombus½ x d1 x d2Area of Special Quadrilateral½ x d x (h1 + h2)Surface area of Cuboid2(lb x bh x hl)Surface area of Cube6a2Surface area of cylinder2πr(r + h)Volume of Cuboidl × b × hVolume of Cubea3Volume of cylinderπr2h