Mathematics
On a map drawn to scale of 1 : 2,50,000; a triangular plot of land has the following measurements : AB = 3 cm, BC = 4 cm and angle ABC = 90°.
Calculate :
(i) the actual length of AB and BC in km
(ii) the area of the plot in sq. km.
Related Questions
A model of an aeroplane is made to a scale of 1 : 400. Calculate :
(i) the length, in cm of the model; if the length of the aeroplane is 40 m.
(ii) the length, in m, of the aeroplane, if length of its model is 16 cm.
The dimensions of the model of a multistorey building are 1.2 m × 75 cm × 2 m. If the scale factor is 1 : 30; find the actual dimensions of the building.
A model of a ship is made to a scale 1 : 300.
(i) The length of the model of the ship is 2 m. Calculate the length of the ship.
(ii) The area of the deck of the ship is 180000 m2. Calculate the area of the deck of the model.
(iii) The volume of the model is 6.5 m3. Calculate the volume of the ship.
Triangles ABC and A'B'C' are similar to each other, the corresponding vertices of the two triangles are :
A and B'
C and A'
B and B'
C' and A