Practice Set 5.1, lecture one
JR Tutorials · YouTube
The distance formula built up from Pythagoras, then applied to the practice set.
Co-ordinate Geometry
Chapter 5 of Geometry, SSC Std 10 (English Medium). A short revision read — free, no sign-up.
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Practice Set 5.1 worked through
Yogesh Sir's Backbenchers · YouTube
The same set from another teacher, sum by sum.
Practice Set 5.1, the later questions
Yogesh Sir's Backbenchers · YouTube
Continues into the section formula and collinearity questions.