Practice Set 4.1, lecture one
JR Tutorials · YouTube
Dividing a segment and constructing similar triangles, drawn step by step on screen.
Geometric Constructions
Chapter 4 of Geometry, SSC Std 10 (English Medium). A short revision read — free, no sign-up.
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Practice Set 4.1 worked on paper
elitetutors · YouTube
Useful because you can watch the compass being used rather than just read the steps.
Practice Set 4.2 — tangents
elitetutors · YouTube
Constructing tangents at a point and from an external point.