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Subject :IMO    Class : Class 9

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Class : Class 9

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Subject :IMO    Class : Class 7

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Subject :IMO    Class : Class 9

Following are the steps of construction of a ΔPQR, given that QR = 3 cm, ∠PQR = 45° and QP - PR = 2 cm. Arrange them and select the correct option.
(i) Make an angle XQR = 45° at point Q of base QR.
(ii) Join SR and draw the perpendicular bisector of SR say AB.
(iii) Draw the base QR of length 3 cm.
(iv) Let bisector AB intersect QX at P. Join PR.
(v) Cut the line segment QS = QP - PR = 2 cm from the ray QX.

A (iii) → (ii) → (i) → (v) → (iv)
B (iii) → (i) → (ii) → (v) → (iv)
C (iii) → (i) → (ii) → (iv) → (v)
D (iii) → (i) → (v) → (ii) → (iv)


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Subject :IMO    Class : Class 9

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Subject :IMO    Class : Class 9

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Subject :IMO    Class : Class 9

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 9

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Subject :IMO    Class : Class 9

Fill in the blanks and select the CORRECT option.
• Two cylindrical pots contain the same amount of milk. If their diameters are in the ratio 2 : 1, then the ratio of their heights is __P__.
• The volume of a sphere is equal to __Q__ the volume of a cylinder which has same height and diameter. (Radius of sphere = radius of cylinder)
• The slant height and base diameter of conical tomb are 25 m and 14 m respectively. The cost of white washing its curved surface at the rate of ₹ 210 per 100 m2 is __R__

P Q R
A 4 : 1 half ₹ 1100
B 1 : 4 half ₹ 1100
C 1 : 4 two-third ₹ 1155
D 4 : 1 two-third ₹ 1155


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