# 10th CBSE math solution for exercise 7.1

This page 10th CBSE math solution for exercise 7.1 is going to provide you solution for every problems that you find in the exercise no 7.1

## 10th CBSE math solution for exercise 7.1

(1) Find the distance between the following pairs of points:

(i) (2 , 3) (4 , 1)

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

(iii) (a , b) (-a , -b)

(2) Find the distance between the points (0,0) and (36,15). Can you find the distance between the two points A and B discussed in section 7.2

(3) Determine if the points (1,5) (2,3) and (-2,-11) are collinear.

(4) Check whether (5,-2) (6,4) and (7,-2) are the vertices of an isosceles triangle.

(5) In a classroom 4 friends are seated at the points A,B,C and D as shown in fig 7.8.Champa and Chameli walk into the class and after observing for a few minutes champa asks Chameli,"Don't you think ABCD is a square?" Chameli disagrees. Using distance formula, find which of them is correct. (6) Name the type of quadrilateral formed. If any,by the following points,and give reasons for your answer:

(i) (-1,-2) (1,0) (-1,2) (-3,0)

(ii) (-3,5) (3,1) (0,3) (-1,-4)

(iii) (4,5) (7,6) (4,3) (1,2)

(7) Find the points on the x-axis which is equidistant from (2,-5) and (-2,9)

(8) Find the values of y for which the distance between the points P(2,-3) and Q(10,y) is 10 units.   Solution

(9) If Q(0,1) is equidistant from P(5,-3) and R(x,6),find the values of x.Also find the distances QR and PR.

(10) Find a relation between x and y such that the points (x,y) is equidistant from the points (3,6) and (-3,4).

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