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प्रश्न
Complete of the following, so as to make a true statement:
A quadrilateral has .... diagonals.
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उत्तर
A quadrilateral has two diagonals.
संबंधित प्रश्न
In Fig. 16.19, ABCD is a quadrilateral.
Name a pair of adjacent angles.
The three angles of a quadrilateral are respectively equal to 110°, 50° and 40°. Find its fourth angle.
The following figure shows a quadrilateral in which sides AB and DC are parallel. If ∠A : ∠D = 4 : 5, ∠B = (3x – 15)° and ∠C = (4x + 20)°, find each angle of the quadrilateral ABCD.
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 quadrilateral ABCD, AO and BO are bisectors of angle A and angle B respectively. Show that:
∠AOB = (∠C + ∠D)
In a parallelogram ABCD, its diagonals AC and BD intersect each other at point O.
If AC = 12 cm and BD = 9 cm ; find; lengths of OA and OD.
The number of straight angles in the following figure is ______.
Using the information given, name the right angles in part of figure:
RT ⊥ ST
An angle is said to be trisected, if it is divided into three equal parts. If in the following figure, ∠BAC = ∠CAD = ∠DAE, how many trisectors are there for ∠BAE?
How many diagonals does a quadrilateral have?
