NCERT Exemplar Class 9 Maths Unit 7 Triangles

Candidates can download NCERT Exemplar Class 9 Maths Unit 7 from this page. The exemplar has been provided by the National Council of Educational Research & Training (NCERT) and the candidates can check it from below for free of cost. It contains objective, very short answer type, short answer type, and long answer type questions. Along with it, the answer for each question has also been provided. From the NCERT Exemplar Class 9 Maths Unit 7, candidates can understand the level and type of questions that are asked in the exam.

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NCERT Exemplar Class 9 Maths Unit 7 Triangles

NCERT Class 9 Maths Unit 7 is for Triangles. The type of questions that will be asked from NCERT Class 9 Maths Unit 7 are displayed in the below provided NCERT Exemplar Class 9 Maths Unit 7. With the help of it, candidates can prepare well for the examination.

Also Check: NCERT Solutions for Class 9 Maths

Main Concepts and Results

Triangles and their parts, Congruence of triangles, Congruence and correspondence of vertices, Criteria for Congruence of triangles: (i) SAS (ii) ASA (iii) SSS (iv) RHS
AAS criterion for congruence of triangles as a particular case of ASA criterion.

Angles opposite to equal sides of a triangle are equal,
Sides opposite to equal angles of a triangle are equal,
A point equidistant from two given points lies on the perpendicular bisector of the line-segment joining the two points and its converse,
A point equidistant from two intersecting lines lies on the bisectors of the angles formed by the two lines,
In a triangle
(i) side opposite to the greater angle is longer
(ii) angle opposite the longer side is greater
(iii) the sum of any two sides is greater than the third side.