Mensuration Class 8

Q1

How many cubic centimetres make 1 litre?

1 litre = 1000 cm³ and 1 millilitre = 1 cm³.

Q2

What is the curved surface area of a cylinder?

The curved surface area of a cylinder is given by 2𝜋rh square units, where r is the radius of circular ends and h is the height of the cylinder.

Q3

What is the area of a special quadrilateral?

The area of a special quadrilateral is given by ½ x d x (h₁ + h₂) square units, where d is the diagonal which divided the quadrilateral into two triangles and h₁, h₂ are the two perpendiculars from the vertices of a quadrilateral to its diagonal.

Q4

What is the area of a parallelogram?

The area of a parallelogram is given by b × h, where h is the altitude of the parallelogram on the base b.