Class 9 Math Chapter 17 Question Answer
Handwritten and composed notes Class 9 Math Chapter 17 Question Answer Practical Geometry - Triangles of Chapter No.17: Practical Geometry - Triangles notes written by Professor Asad Khalid Suib. These notes are very helpful in the preparation of Practical Geometry - Triangles for the students of Mathematics Science group of the (9 class) Matriculation and these are according to the paper patterns of all Punjab boards.
Summary and Contents:
Topics which are discussed in the notes are given below:
- Important notes of Class 9 Math Chapter 17 Question Answer for Matriculation part-I students.
- Complete Multiple Choice Questions (MCQs) of Chapter No.17: Practical Geometry - Triangles 9th class Mathematics Science group in English medium.
- Complete Chapter exercise solved questions of Chapter No.17: Practical Geometry - Triangles 9th class Mathematics Science group in English medium.
- Complete Chapter review exercise questions of Chapter No.17: Practical Geometry - Triangles 9th class Mathematics Science group in English medium.
- Important definitions Asking in board question papers of Chapter No.17: Practical Geometry - Triangles 9th class Mathematics Science group in English medium.
- Construct a triangle having given: two sides and the included
angle, one side and two of the angles, two of its sides and the angle
opposite to one of them and two of them angles, two of its sides and
the angle opposite to one of them (with all the three possibilities).
- Draw: angle bisectors, altitudes, perpendicular bisectors, medians,
of a given triangle and verify their concurrency.
- Construct a triangle equal in area to a given quadrilateral. Construct
a rectangle equal in area to a given triangle. Construct a square
equal in area to a given rectangle. Construct a triangle of equivalent
area on a base of given length.
- Here are the detailed 9th class math chapter 17 question answer pdf to help you prepare for your exams.
- Introduction: In this unit we shall learn to construct different triangles rectangles, squares etc. The knowledge of these basic constructions
is very useful in every day life, especially in the occupations of wood working, graphic art and metal trade etc. Intermixing of geometrical
figures is used to create artistic look. The geometrical constructions
are usually made with the help of a pair of compasses, set squares,
dividers and a straight edge.
- Observe that: If the given line segments are too big or too small, a suitable
scale may be taken for constructing the figure.
- Definitions: Three or more than three lines are said to be concurrent, if
they all pass through the same point. The common point is called
the point of concurrency of the lines. The point of concurrency has
its own importance in geometry. They are given special names.
- (i) The internal bisectors of the angles of a triangle meet at a
point called the incentre of the triangle. The point of concurrency of the three perpendicular bisectors
of the sides of a ∆ is called the circumcentre of the ∆. (iii) The point of concurrency of the three altitudes of a ∆ is called its orthocentre. (iv) The point where the three medians of a r meet is called the centroid of the triangle.
- You can also download the 9th class math chapter 17 question answer pdf download for free.
- 1. Construct a rectangle whose adjacent sides are 2.5 cm and 5 cm
respectively. Construct a square having area equal to the given
rectangle.
- 2. Construct a square equal in area to a rectangle whose adjacent
sides are 4.5 cm and 2.2 cm respectively. Measure the sides of
the square and find its area and compare with the area of the
rectangle.
- 3. Construct a square equal in area to the sum of two squares
having sides 3 cm and 4 cm respectively.
- To construct a triangle, having given one side and two of the angles.
- To construct a triangle having given two of its sides and the angle
opposite to one of them.