Q12 of 160 Page 144

Which is the maximum number of obtuse angle that a quadrilateral can have?

Sum of interior angles of a quadrilateral is 3600. An obtuse angle is an angle between 900 and 1800 .So all the angles can’t be obtuse since then the sum will exceed 3600.So maximum it can have 3 obtuse angle.

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10

Which of the following properties describe a trapezium?

(A) A pair of opposite side is parallel.


(B) The diagonals bisect each other.


(C) The diagonals are perpendicular to each other.


(D) The diagonals are equal.


Option: (A)

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Which of the following is a property of a parallelogram?

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What is the sum of the angles of a pentagon?