मराठी

On a Map Drawn to a Scale of 1:25000, a Rectangular Plot of Land Has Sides 12cm X 16cm. Calculate: the Area of the Plot in Sq Km - Mathematics

Advertisements
Advertisements

प्रश्न

On a map drawn to a scale of 1:25000, a rectangular plot of land has sides 12cm x 16cm. Calculate: The area of the plot in sq km

बेरीज

उत्तर

scale = 1:25000
Area ABCD 
= 12 x 16 x 25000 x 25000cm2 

= `(12 xx 6 xx 25000 xx 25000)/(100 xx 1000 xx 100 xx 1000)`km

= `(120000)/(10000)`km2
= 12km2.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 16: Similarity - Exercise 16.2

APPEARS IN

फ्रँक Mathematics [English] Class 9 ICSE
पाठ 16 Similarity
Exercise 16.2 | Q 22.2

संबंधित प्रश्‍न

In figure, ∠CAB = 90º and AD ⊥ BC. If AC = 75 cm, AB = 1 m and BD = 1.25 m, find AD.


E and F are points on the sides PQ and PR, respectively, of a ΔPQR. For the following case, state whether EF || QR.

PE = 3.9 cm, EQ = 3 cm, PF = 3.6 cm and FR = 2.4 cm


In the given figure, ∆ABC and ∆AMP are right angled at B and M respectively.

Given AC = 10 cm, AP = 15 cm and PM = 12 cm.

  1. Prove that: ∆ABC ~ ∆AMP
  2. Find: AB and BC.


The given figure shows a triangle PQR in which XY is parallel to QR. If PX : XQ = 1 : 3 and QR = 9 cm, find the length of XY.


Further, if the area of ΔPXY = x cm2; find, in terms of x the area of :

  1. triangle PQR.
  2. trapezium XQRY.

In ΔABC, D and E are the points on sides AB and AC respectively. Find whether DE || BC, if AB = 6.3 cm, EC = 11.0 cm, AD = 0.8 cm and AE = 1.6 cm.


In ΔABC, D and E are the mid-point on AB and AC such that DE || BC.
If AD : BD = 4 : 5 and EC = 2.5cm, find AE.


On a map drawn to a scale of 1: 2,50,000, a triangular plot of land has the following measurements:
AB = 3 cm, BC = 4 cm, ∠ABC = 90°. Calculate:
(i) The actual length of AB in km.
(ii) The area of Plot in sq. km.


A man whose eye-level is 2 m above the ground wishes to find the height of a tree. He places a mirror horizontally on the ground 20 m from the tree and finds that if he stands at a point C which is 4 m from the mirror B, he can see the reflection of the top of the tree. How height is the tree?


In the figure, if ∠FEG ≡ ∠1 then, prove that DG2 = DE.DF


Given ΔABC ~ ΔDEF, if ∠A = 45° and ∠E = 35° then ∠B = ?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×