Practice set 1.1 class 9 maths part 2 | Chapter 1 Basic Concepts in Geometry Maharashtra state board

Описание: Practice set 1.1 class 9 maths, practice set 1.1 std 9th, 9th std practice set 1.1 class 9 math, part 2 | Chapter 1 Sets | Maharashtra state board #class9th
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1. Find the distances with the help of the number line given below.
Fig. 1.5
Q P K J H O A B C D E
-5 -4 -3 -2 -1 0 1 2 3 4 5 6
(i) d(B,E) (ii) d(J, A) (iii) d(P, C) (iv) d(J, H)
(v) d(K, O) (vi) d(O, E) (vii) d(P, J) (viii) d(Q, B)
2. If the co-ordinate of A is x and that of B is y, find d(A, B) .
(i) x = 1, y = 7 (ii) x = 6, y = - 2 (iii) x = - 3, y = 7
(iv) x = - 4, y = - 5 (v) x = - 3, y = - 6 (vi) x = 4, y = - 8
3. From the information given below, find which of the point is between the other two.
If the points are not collinear, state so.
(i) d(P, R) = 7, d(P, Q) = 10, d(Q, R) = 3
(ii) d(R, S) = 8, d(S, T) = 6, d(R, T) = 4
(iii) d(A, B) = 16, d(C, A) = 9, d(B, C) = 7
(iv) d(L, M) = 11, d(M, N) = 12, d(N, L) = 8
(v) d(X, Y) = 15, d(Y, Z) = 7, d(X, Z) = 8
(vi) d(D, E) = 5, d(E, F) = 8, d(D, F) = 6
4. On a number line, points A, B and C are such that d(A,C) = 10, d(C,B) = 8
Find d(A, B) considering all possibilities.
5. Points X, Y, Z are collinear such that d(X,Y) = 17, d(Y,Z) = 8, find d(X,Z) .
6. Sketch proper figure and write the answers of the following questions.
(i) If A - B - C and l(AC) = 11, l(BC) = 6.5, then l(AB) =?
(ii) If R - S - T and l(ST) = 3.7, l(RS) = 2.5, then l(RT) =?
(iii) If X - Y - Z and l(XZ) = 3 7 , l(XY) = 7 , then l(YZ) =?
7. Which figure is formed by three non-collinear points ?