Advertisements
Advertisements
Question
In a quadrilateral, define of the following Opposite angles .
Advertisements
Solution
\[ \text{ The two angles of a quadrilateral which are not adjacent are called opposite angles } . \]
RELATED QUESTIONS
What is the sum of the measures of the angels of a convex quadrilateral? Will this property hold if the quadrilateral is not convex? (Make a non-convex quadrilateral and try!)
In a quadrilateral, define of the following Exterior .
Complete of the following, so as to make a true statement:
A quadrilateral is convex if, for each side, the remaining ______ lie on the same side of the line containing the side.
Two opposite angles of a parallelogram are 100° each. Find each of the other two opposite angles.
Observe the figure below and find out their name.

Which of the following is not true for a parallelogram?
A quadrilateral can have all four angles as obtuse.
The number of straight angles in the following figure is ______.

Draw a rough sketch of a quadrilateral KLMN. State two pairs of opposite sides.
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?
