JEE (Based on NTA Guidelines-IIT Engg.) Mains Chemistry Coaching Programs
πΉ Video Course 2024 (0 Lectures [0 Mins]): Offline Support
Click Here to View & Get Complete Material
Rs. 100.00
1 Month Validity (Multiple Devices)
β³ π― Online Tests (1 Tests [30 Questions Each]): NTA Pattern, Analytics & Explanations
Click Here to View & Get Complete Material
Rs. 100.00
3 Year Validity (Multiple Devices)
π Study Material (159 Notes): 2024-2025 Syllabus
Click Here to View & Get Complete Material
Rs. 350.00
3 Year Validity (Multiple Devices)
π― 144 Numeric, 2994 MCQs (& PYQs) with Full Explanations (2024-2025 Exam)
Click Here to View & Get Complete Material
Rs. 650.00
3 Year Validity (Multiple Devices)
NCERT Class 9 Solutions: Triangles (Chapter 7) Exercise 7.4 β Part 2
Side opposite angle
Q-3. In the figure, and . Show that .
Solution:
Given,
and
- Now,
β¦ equation (1) (Side opposite to the smaller angle is smaller)
β¦ equation (2) (Side opposite to the smaller angle is smaller)
- Adding (1) and (2)
Q-4 AB and CD are respectively the smallest and longest sides of a quadrilateral ABCD (see Figure) Show that
and
Give, AB and CD are respectively the smallest and longest sides of a quadrilateral ABCD
- In
β¦ equation (1) (Angle opposite to longer side is larger.)
- Now, In
,
(see figure)
- β¦ equation (2) (Angle opposite to longer side is larger.)
- Adding (1) and (2) we get,
- Similarly, In
,
β¦ equation (3) (Angle opposite to longer side is larger.)
- Now, In
,
β¦ equation (4) (Angle opposite to longer side is larger.)
- Adding (3) and (4) we get