09
Mar
SSA is not a valid congruence criterion
A witty explanation and proof by mathemafia that SSA is not a valid congruence criterion when it comes to the congruence of triangles in geometry.
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18
Feb
Axioms – Lines and Angles
Class 9 | Chapter 6 | Axiom 6.1, 6.2, 6.3, 6.4 | Mathematics NCERT This is a video tutorial that covers the following: Definitions of axiom Ray Line Line segment and their representation Adjacent angles Corresponding angles. Axiom 6.1 – If…
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18
Feb
CPCT or CPCTC
In NCERT books for class 9 and 10, term CPCT is used while proving congruence of triangles or other shapes. Very frequently students ask me this query why I use CPCTC instead of CPCT. The term CPCTC is more accurate…
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