The combined total score is 4060. Dividing this total by the combined 55 students yields a weighted overall average score of approximately 73.82. Ganita Manjari part 2 Chapter 10.1 Solutions Class 9 Ganita Manjari Part 2 Chapter 10 Page 13 Question ...
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The proposition is true since square products are squares. However, the converse (“If ab is a perfect square, then a and b are perfect squares”) is false; for example, 2 × 8 = 16.
Both the proposition and its converse (“If a + x = a + y, then x = y”) are true. Adding equals preserves equality and subtracting a from both sides restores x = y.
Both the proposition and its converse (“If IE = IF, then AB = AC”) are true, as equal sides yield matching bisector segments through symmetry and equal segments enforce isosceles side lengths.
The proposition is true because square angles are 90 degrees. Its converse (“If all angles of a quadrilateral are equal, then it is a square”) is false; a rectangle provides a counterexample.