हिंदी

A point P lies on the x-axis and another point Q lies on the y-axis.Write the ordinate of point P.

Advertisements
Advertisements

प्रश्न

A point P lies on the x-axis and another point Q lies on the y-axis.
Write the ordinate of point P.

एक पंक्ति में उत्तर
Advertisements

उत्तर

Since, the point P lies on the x-axis, its ordinate is 0.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 28: Distance Formula - Exercise 28 [पृष्ठ ३३५]

APPEARS IN

सेलिना Concise Mathematics [English] Class 9 ICSE
अध्याय 28 Distance Formula
Exercise 28 | Q 10.1 | पृष्ठ ३३५

संबंधित प्रश्न

Find the distance between the points

P(a sin ∝,a cos ∝ )and Q( acos ∝ ,- asin ∝)

 


Find the distance of a point (7 , 5) from another point on the x - axis whose abscissa is -5.


Find the distance of a point (12 , 5) from another point on the line x = 0 whose ordinate is 9.


Find the distance between P and Q if P lies on the y - axis and has an ordinate 5 while Q lies on the x - axis and has an abscissa 12 .


Prove that the following set of point is collinear :

(5 , 5),(3 , 4),(-7 , -1)


The centre of a circle passing through P(8, 5) is (x+l , x-4). Find the coordinates of the centre if the diameter of the circle is 20 units.


Find the distance between the following pairs of points:
`(3/5,2) and (-(1)/(5),1(2)/(5))`


Find a point on the y-axis which is equidistant from the points (5, 2) and (-4, 3).


Find distance between point A(–3, 4) and origin O.


Case Study

Trigonometry in the form of triangulation forms the basis of navigation, whether it is by land, sea or air. GPS a radio navigation system helps to locate our position on earth with the help of satellites.
A guard, stationed at the top of a 240 m tower, observed an unidentified boat coming towards it. A clinometer or inclinometer is an instrument used for measuring angles or slopes(tilt). The guard used the clinometer to measure the angle of depression of the boat coming towards the lighthouse and found it to be 30°.

  1. Make a labelled figure on the basis of the given information and calculate the distance of the boat from the foot of the observation tower.
  2. After 10 minutes, the guard observed that the boat was approaching the tower and its distance from tower is reduced by 240(`sqrt(3)` - 1) m. He immediately raised the alarm. What was the new angle of depression of the boat from the top of the observation tower?

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×