Shalini has to cut out circles of diameter `1(1)/(4)` cm from an aluminium strip of dimensions `8(3)/(4)` cm by `1(1)/(4)` cm. How many full circles can Shalini cut? Also calculate the wastage of the aluminium strip.

Find the area of a circle whose diameter is Q(i) 28 cm. (ii)1.4 m.

A 4cm cube is cut into 1cm cubes.Calculate the total surface area of all the small cubes.

A 4cm cube is cut into 1cm cubes.Calculate the total surface area of all the small cubes.

The dimensions of a cuboid are l=4cm,b=8cm,h=1cm. How many cube of 1cm can be cut out of it?

In an exhibition hall, there are 24 display boards each of length 1m 50cm and breadth 1m. There is a 100m long aluminium strip, which is used to frame these boards. How many boards will be framed using this strip? Find also the length of the aluminium strip required for the remaining boards.

In an exhibition hall,there are 24 display boards each of length 1m50cm and breadth 1m.There is a 100m long aluminium strip, which is used to frame these boards.How many boards will be framed using this strip? Find also the length of the aluminium strip required for the remaining boards.

Asector of 120^@ cut out from circle has an Area 9 3/7 cm^2 . What is radius of circle ?

How many spherical lead shots each of diameter 4.2 cm can be obtained from a solid rectangular lead piece with dimensions 66 cm, 42 cm and 21 cm?

From a square of side 8 cm, two quadrants of a circle of radii 1.4 cm are cut from two corners. Another circle of radius 4.2 cm is also cut from the centre as shown in the figure. Find the area of the remaining (shaded) portion of the square. [Take pi =22/7 ]