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प्रश्न
In Fig. 16.19, ABCD is a quadrilateral.
How many pairs of opposite sides are there?
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उत्तर
Two
संबंधित प्रश्न
In Fig. 16.19, ABCD is a quadrilateral.
Name a pair of adjacent sides.
In quadrilateral PQRS, ∠P : ∠Q : ∠R : ∠S = 3 : 4 : 6 : 7.
Calculate each angle of the quadrilateral and then prove that PQ and SR are parallel to each other
(i) Is PS also parallel to QR?
(ii) Assign a special name to quadrilateral PQRS.
ABCDE is a regular pentagon. The bisector of angle A of the pentagon meets the side CD in point M. Show that ∠AMC = 90°.
In a trapezium ABCD, side AB is parallel to side DC. If ∠A = x° and ∠D = (3x – 20)°; find the value of x.
Angle A of an isosceles trapezium ABCD is 115°; find the angles B, C and D.
Two adjacent angles of a parallelogram are 70° and 110° respectively. Find the other two angles of it.
If three angles of a quadrilateral are 90° each, show that the given quadrilateral is a rectangle.
If bisectors of ∠A and ∠B of a quadrilateral ABCD intersect each other at P, of ∠B and ∠C at Q, of ∠C and ∠D at R and of ∠D and ∠A at S, then PQRS is a ______.
Measures of the two angles between hour and minute hands of a clock at 9 O’ clock are ______.
Which of the following is a key requirement for correctly naming a □ABCD?
