CBSE Class 9 Mathematics Circles Worksheet Set 03

Question. Sunidhi's mother made a square table cloth with scalloped edges made of equal semi-circles as shown:
If she wants to fix lace all along the scalloped edges, about how many metres of lace would she need?

(a) 4
(b) 6
(c) 8
(d) 12

Answer : A

Question. Sania drew a quadrilateral PQRS in which the opposite angles were supplementary but the adjacent angles were not. What kind of quadrilateral was PQRS?
(a) A trapezium
(b) A rhombus
(c) A parallelogram
(d) A cyclic quadrilateral

Answer : D

Question. Two circular sheets have diameters in the ratio 1:2. If the smaller circular sheet is put on top of the larger one as shown, what part of the larger circular sheet remains uncovered?

(a) 1/4
(b) 3/4
(c) 2/4
(d) 4/4 

Answer : B

Question. An 'ellipse' is a closed curve drawn in this way: Fix two points (focuses or foci) and move a pencil along the end of a closed string as shown in the figure:From this, we can say that an ellipse is the curve traced by a point moving in such a way that

(a) its distance from a fixed point remains the same.
(b) its distance from 2 fixed points remains the same.
(c) the sum of its distances from 2 fixed points remains the same.
(d) the difference of its distances from 2 fixed points remains the same.

Answer : C

Question. A gardener can trim a square lawn of side 50 metres in 4 hours. At the same rate, how long will it take him to trim a square lawn of side 25 metres?

(a) 1 hour
(b) 2 hours
(c) 2 hours 30 minutes
(d) 3 hours

Answer : A

Question. Solid X is made by putting together 4 unit cubes.If the total surface area of solid X is 36 cm2, what is the total surface area of each unit cube?

(a) 12 cm²
(b) 10 cm²
(c) 9 cm²
(d) 6 cm²

Answer : A

Question. A rectangular metal sheet 16 dm x 20 dm has to be rolled to form a cylinder. What is the maximum volume (in cubic decimetres) that it can enclose when the base is attached?
(a) 1280/π
(b) 1600/π
(c) 5120/π
(d) 6400/π

Answer : B

Question. Look at this chocolate wrapper shown in the Image .Normally, how many grams of this chocolate would you have got for Rs. 16?

(a) 62.5
(b) 37.5
(c) 37.5
(d) 35

Answer : B

Question. Sarthak gave the description of a three-dimensional figure as follows:  It has 6 vertices.
It has 12 edges. 
It has 8 faces.
Which of the following figures is it?

Answer : D

Question. In the following figures, identical shapes represent the same weight.

(a) 3:1:6
(b) 2:6:1
(c) 3:1:2
(d) 1:6:1

Answer : A

Question. 11 small unit cubes are joined together as shown below to form the solid shown in Figure At least how many more unit cubes will be needed to turn the structure into a solid CUBE (not cuboid) with no gaps?

(a) 3
(b) 8
(c) 11
(d) 16

Answer : D

Please click the below link to access CBSE Class 9 Mathematics Worksheet - Circles (2)