# 10th Standard Math’s Chapter 9

10th Standard Math’s Chapter 9  Quiz. how much you know or you don’t  know,  test here. quiz  contains only 10 questions there no time limit.

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10th Standard Math’s Chapter 9

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Q.81 The length of altitude of an equilateral triangle of side 8cm is

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Q.82 If ΔABC ~ ΔDEF, AB = 4 cm, DE = 6 cm, EF = 9 cm and FD = 12 cm, find the perimeter of ABC.

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Q.83 A 5 m long ladder is placed leaning towards a vertical wall such that it reaches the wall at a point 4 m high. If the foot of the ladder is moved 1.6 m towards the wall, then the distance by which the top of the ladder would slide upwards on the wall is:

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Q.84 Corresponding sides of two similar triangles are in the ratio of 2 : 3. If the area of the smaller triangle is 48 cm2, then the area of the larger triangle is:

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Q.85 If the distance between the points (2, –2) and (–1, x) is 5, one of the values of x is

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Q.86 The mid-point of the line segment joining the points A (–2, 8) and B (– 6, – 4) is

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Q.87 The points A (9, 0), B (9, 6), C (–9, 6) and D (–9, 0) are the vertices of a

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Q.88 The distance of the point P (2, 3) from the x-axis is

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Q.89 The distance between the points A (0, 6) and B (0, –2) is

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Q.90 AOBC is a rectangle whose three vertices are vertices A (0, 3), O (0, 0) and B (5, 0). The length of its diagonal is