NCERT Solutions for Class 9 Maths Chapter 7 Exercise 7.3 Triangles in PDF file format Hindi Medium and English Medium updated for academic session 2023-24. The questions of ex. 7.3 class 9th Maths are revised as per new NCERT released for CBSE as well as State boards.
|Exercise: 7.3||NCERT Solutions and Pratice Questions|
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Class 9 Maths Chapter 7 Exercise 7.3 Solution in Hindi and English
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Class 9 Maths Exercise 7.3 Solutions in Hindi Medium Video
Congruence in Daily Life
Sometimes it can be difficult to replace your pen refill with a new one, and this is when the new refill is not the size you want to remove. If the two reloads are the same or conform, the new reload fits. Therefore, you can find many examples where object congruence is applied in everyday life situations.
Examples of Congruent Objects
You may wonder why we are studying greetings. Everyone must have seen a tray of ice in their fridge. Note that the snow molds are all greetings. The plaster used for casting in trays also has impermeable depressions (they can be rectangular or circular or all triangular). Therefore, whenever the same items must be produced, the concept of conformity is used to make molds.
Points to be remembered
- If two triangles and one triangle’s side are equal to two angles and the other triangle’s side is equal, then the two triangles are congruent (ASA Rule).
- If two triangles and one edge of a triangle are equal to two angles and the other is the corresponding side of the triangle, then the two triangles are congruent (AAS Rule).
- Angles opposite sides of a triangle are equal.
- The opposite sides of the angles are equal in a triangle.
- In an equilateral triangle each angle is 60 °.
Which congruence rules will students learn in exercise 7.3 of grade 9th Maths?
There are five congruence rules in chapter 7 of class 9th Maths out of which two congruence rules students will learn in exercise 7.3 of class 9th Maths.
These two rules are:
- SSS congruence rule (Side-Side-Side).
- RHS congruence rule (Right angle-Hypotenuse-Side).
How many examples are there based on exercise 7.3 of class 9 Maths?
There are only two examples – example number 7 and 8. Both are equally important for exams.
What are SSS and RHS congruence rules in exercise 7.3 of class 9th Maths?
SSS congruence rule:
If three sides of one triangle are equal to the three sides of another triangle, then the two triangles are congruent.
RHS congruence rule:
If in two right triangles the hypotenuse and one side of one triangle are equal to the hypotenuse and one side of the other triangle, then the two triangles are congruent.
Which question in exercise 7.3 is most tricky to understand?
Question number 3 of CBSE Class 9 Maths exercise 7.3 seems to be the trickiest.
How much time, students need to do exercise 7.3 of class 9th Maths?
Students need a maximum of 3 days to do exercise 7.3 (chapter 7) of class 9th mathematics if they give at least 1-2 hours per day to this exercise. This time also depends on student’s working speed, efficiency, capability and many other factors.
Is exercise 7.3 of 9th Maths easy?
All five questions given in exercise 7.3 of class 9 Maths are easy to solve and understand.
How can students get good marks in exercise 7.3 (chapter 7) of grade 9th Maths?
Exercise 7.3 of class 9th Maths contains two examples (examples 7, 8) and 5 questions. Questions 1, 3, 4, 5 and example 7 of this exercise are most important from the exam point of view. So, to get good marks in exercise 7.3 of grade 9th Maths, students should practice these questions and examples honestly. These questions can come in three or more than three marks in the exams.