A small indoor greenhouse (herbarium) is made entirely of glass panes (including base) held togther with tape. It is 30 cm long, 25 cm wide and 25 cm high.
How much of tape is needed for all the 12 edges ?

A small indoor greenhouse (herbarium) is made entirely of glass panes (including base) held togther with tape. It is 30 cm long, 25 cm wide and 25 cm high. What is the area of the glass ?

A small indoor greenhouse (herbarium) is made entirely of glass panes (including base) held together with tapeIt is 30 cm long, 25 cm wide and 25 cm high. (i) What is the area of the glass ? (ii) How much of tape is needed for all the 12 edges ?

A cubical box has each edge 10 cm and another cuboidal box is 12.5 cm long. 10 cm wide and 8 cm high. Which box has the greater lateral surface area and by how much ?

A cubical box has each edge 10 cm and another cuboidal box is 12.5 cm long. 10 cm wide and 8 cm high. Which box has the smaller total surface area and by how much ?

A cubical box has each edge 10 cm and another cuboidal box is 12.5 cm long, 10 cm wide and 8 cm high. (i) Which box has the greater lateral surface area and by how much ? (ii) Which box has the smallest total surface area and by how much ?

Water in a canal , 6m wide and 1.5cm deep, is flowing with a speed of 10km/h. How much are a will it irrigate in 30 minutes , if 8cm of standing water is needed ?

In Fig.13.12, you see the frame of a lampshade. It is to be covered with a decorative cloth. The frame has a base diameter of 20 cm and height of 30 cm. A margin of 2.5 cm is to be given for folding it over the top and bottom of the frame. Find how much cloth is required for covering the lampshade.

In the given you see, the frame of a lampshede. It is to be covered with a decorative cloth. The frame has a base diameter of 20 cm and height of 30 cm. A margin of 2.5 cm is to be given for folding it over the top and bottom of the frame. Find how much cloth is required for covering the lampshade.

(Street plan): A city has two main roads which cross each other at the centre of the city. These two roads are along the North-South direction and East_West direction. All the other streets of the city run parallel to these roads and are 200m apart. There are 5 streets in each direaction. Using 1 cm =200cm, draw a model of teh city on your note book. Represent the roads/streets by single lines. There are many cross-streets in your model. A particular cross-street is made by two streets, one running in the North-South directin and another in the East-West direction. Each cross street is rreferred to in the following manner, If the 2 ^(nd) steeet running in teh North-South direction 5 ^(th) in the East-West direction meet at some crossing, then we will call this cross-street (2,5). Using this convection, find: How many cross-streets can be referred at as (4,3)