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प्रश्न
Complete of the following, so as to make a true statement:
The number of pairs of adjacent angles of a quadrilateral is .......
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उत्तर
The number of pairs of adjacent angles of a quadrilateral is four.
संबंधित प्रश्न
In a quadrilateral, define of the following Sides.
In a quadrilateral, define of the following Opposite angles .
In Fig. 16.19, ABCD is a quadrilateral.
Name a pair of opposite angles.
In a quadrilateral ABCD, CO and DO are the bisectors of ∠C and ∠D respectively. Prove that \[∠COD = \frac{1}{2}(∠A + ∠B) .\]
Two adjacent angles of a parallelogram are 70° and 110° respectively. Find the other two angles of it.
D and E are the mid-points of the sides AB and AC respectively of ∆ABC. DE is produced to F. To prove that CF is equal and parallel to DA, we need an additional information which is ______.
Construct a quadrilateral NEWS in which NE = 7 cm, EW = 6 cm, ∠N = 60°, ∠E = 110° and ∠S = 85°.
The common part between the two angles BAC and DAB in the following figure is ______.
In the following figure, What is AC – EC?
Investigate :
Use strips and fasteners to make a triangle and a quadrilateral.
Try to push inward at any one vertex of the triangle. Do the same to the quadrilateral. Is the triangle distorted? Is the quadrilateral distorted? Is the triangle rigid?
Why is it that structures like electric towers make use of triangular shapes and not quadrilaterals?
