Mensuration Tes...

A road  roller $$4$$ m wide and with a diameter of $$3.5$$ m makes $$4$$ revolutions in $$1$$ minute. How much time will it take to roll over an area of $$6160$$ m$$^2$$?

A cylindrical container with internal radius of its base $$10$$ cm, contains water up to a height of $$7$$ cm. Find the area of the wet surface of the cylinder.

The dimensions of a car petrol tank are $$50$$ cm $$ \times\, 32$$ cm $$ \times\, 24\,$$ cm, which is full of petrol. If car's average consumption is $$15$$ km per litre, find the maximum distance that can be covered by the car.

Curved surface of right circular cylinder is $$4.4{m}^{2}$$, radius of base is $$0.7\ m,$$ then the height is $$\left(\text{Take }\pi=\dfrac{22}{7}\right)$$:

A closed cylindrical tank, made of thin iron sheet, had diameter $$8.4$$ m and height $$5.4$$ m. How much metal sheet to the nearest $$\displaystyle m^{2},$$ is used in making this tank, if $$\displaystyle \frac{1}{15}$$ of the sheet actually used was wasted in making the tank ?

A closed cylindrical tank, made of thin iron-sheet, has diameter $$8.4$$ m and height $$5.4$$ m. How much metal sheet to the nearest $$m^2$$ is used in making this tank, if $$\displaystyle \frac{1}{15}$$ of the sheet actually used was wasted in making the tank ?

the height of the cylinder correct to one decimal place.

A building has $$8$$ right cylindrical pillars whose cross sectional diameter is $$1$$ m and whose height is $$4.2$$ m. Find the expenditure to paint these pillars at the rate of Rs.$$24$$ per $$m^2$$

What is the total surface area of a cube whose side is $$0.5 $$ cm?

In a trapezium whose parallel sides measure $$24\ cm$$ and $$15\ cm$$ and the distance between them is $$10\ cm$$. Find the area of trapezium.