Question 1 · 1 mark
A quadrilateral is known to be a rectangle. Which implication needs an extra condition?
- It has four right angles.
- It is a square.
- Its opposite sides are equal.
GANITA MANJARI · GRADE 9 · PART II · CHAPTER 9
AMP 3 — Challenge
Think first. Use AI purposefully. Verify always.
ORIGINAL AIMS MATERIAL · 40 MARKS · SELF-REVIEW
AMP 3 — Challenge
Work on paper, including diagrams. No timer or automatic grade. Questions are selected from this chapter’s original AIMS bank. These are not CBSE Board Papers.
Objective · 4 marks
Question 2 · 1 mark
Positive factors of 16 total…
Question 3 · 1 mark
Why is AAA not the criterion used to match the two triangles in the converse proof?
- The proof first establishes equality of three sides.
- AAA fixes size automatically.
- Right triangles need no congruence criterion.
Question 4 · 1 mark
What is wrong with “it seems true, so its converse is true”?
- Neither direction has been independently justified.
- A converse is always false.
- Examples cannot be used at all.
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