RBSE Class 7 Maths Notes Chapter 10 Practical Geometry

These comprehensive RBSE Class 7 Maths Notes Chapter 10 Practical Geometry will give a brief overview of all the concepts.

RBSE Class 7 Maths Chapter 10 Notes Practical Geometry

→ Given a line l and a point not on it, we used the idea of‘equal alternate angles’ in a transversal diagram to draw a line parallel to l. We could also have used the idea of ‘equal corresponding angles’ to do the construction.

→ We studied the method of drawing a triangle, using indirectly the concept of congruence of triangles.
The following cases were discussed :

• SSS: Given the three side lengths of a triangle.
• SAS: Given the lengths of any two sides and the measure of the angle between these sides.
• ASA: Given the measures of two angles and the length of side included between them.
• RHS: Given the length of hypotenuse of a right-angled triangle and the length of one of its legs.

→ To construct a triangle, first draw its rough sketch.

→ While drawing a triangle, we use indirectly the concept of congruence of triangle.