4. Observe the figure and answer the following questions. 4m
1. Name the pairs of opposite angles .
2. Name the pairs of opposite sides .
3. Name the diagonals of the quadrilateral .
4. Write the name of the quadrilateral in two different ways .
Answer:
1 When two lines intersect they form two pairs of opposite angles, A + C and B + D. Another word for opposite angles are vertical angles. Vertical angles are always congruent, which means that they are equal. Adjacent angles are angles that come out of the same vertex.
2. Pair of Opposite Sides of a Parallelogram are Equal and Parallel.
3. (i) If diagonals of a quadrilateral bisect each other then it is a rhombus, parallelogram, rectangle or square. (ii) If diagonals of a quadrilateral are perpendicular bisector of each other, then it is a rhombus or square. (iii) If diagonals are equal, then it is a square or rectangle.
4. Square,rectangle,rhombus and trapezium etc are four different types of quadrilateral.
Step-by-step explanation:
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