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Which of the following options is incorr...

Which of the following options is incorrect?

A

In a `DeltaPQR`, if PM bisects QR, then QM = MR.

B

If the altitudes PM, QN and RO of `DeltaPQR` are equal, then `DeltaPQR` is equilateral.

C

The line joining the mid points of any two sides of a triangle is parallel to the third side.

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
D
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SCIENCE OLYMPIAD FOUNDATION -IMO QUESTION PAPER SET B 2019-MATHEMATICAL REASONING
  1. Find the value of X in the given figure (not drawn to scale).

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  2. The construction of a DeltaLMN in which LM = 8 cm, angleL = 45^@ is p...

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  3. If the sum of the interior angles of a polygon is two times the sum o...

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  4. If the perpendicular distance of a point S from the y-axis is 8 units ...

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  5. In the given figure (not drawn to scale), PQ || RS. If angleQPR = 70^@...

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  6. The graph of the linear equation 2y = 4x – 5 passes through the point

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  7. In the given figure, if angleP lt angleL and angleM lt angleN, then...

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  8. ABCD is a cyclic quadrilateral. If angleBCX = 70^@ and angleADX' =80^@...

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  9. The following data shows the number of families and number of children...

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  10. What value must be subtracted from the polynomial 4y^4 + 12y^3 + 6y^2...

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  11. In the given figure (not drawn to scale), find the ratio of the area o...

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  12. In a cylinder, if radius of the base is halved and height is twiced, t...

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  13. Simplify : (i) (root(5)(a^3b^(-2)c^(-4)))/(root5(a^8b^3c^(-9))) (ii...

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  14. Which of the following options is incorrect?

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  15. Which of the following is/are Euclid's postulate? (i) A terminated l...

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  16. The adjacent sides of a parallelogram PQRS measure 34 cm and 20 cm and...

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  17. A bank offers 8% compound interest calculated on half-yearly basis. A ...

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  18. The given diagram is drawn on a cartesian plane. If ABCD is a re...

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