Students of a school are standing in rows and columns in their playground for a drill practice . A, B, C and D are the positions of four students as shown in figure . Is it possible to place Jaspal inn the drill in such a way that he is equidistant from each of the four students A, B C and D ? If so, what should be his position ?

In a playground, 4 friends are standing at the points A, B, C and D as shown in given figure, to play a game. The distance AB is:

In the following figure, four curves A,B, C and D are shown. The curves are

The position vector of four points A, B, C and D are a,b,c and d respectively . If a- b = 2(d-c) the

In a school, all the students can stand in a row, so that each row has 5, 9 or 10 students. Find the least number of students in the school.

Three sports inchange are sitting at positions A, B are C to monitor the activity of students in the playground They are conducting the physical education exam of students. The position of three instructors are shown on the coordinate axes. In School play ground there sports incharge are sittign at positions located by the points A, B and C on coordinate axes as point A, B and C. Delta ABC is