Straight Line Question 12

Question: The obtuse angle between the lines $ y=-\ 2 $ and $ y=x+2 $ is [RPET 1984]

Options:

A) $ 120^{o} $

B) $ 135^{o} $

C) $ 150^{o} $

D) $ 160^{o} $

Show Answer

Answer:

Correct Answer: B

Solution:

  • The gradient of the line $ y=x+2 $ is 1. Therefore, it makes an angle of $ 45^{o} $ with x-axis. The second line is parallel to x-axis. Hence the obtuse angle between the lines is $ 135^{o} $ .



sathee Ask SATHEE

Welcome to SATHEE !
Select from 'Menu' to explore our services, or ask SATHEE to get started. Let's embark on this journey of growth together! 🌐📚🚀🎓

I'm relatively new and can sometimes make mistakes.
If you notice any error, such as an incorrect solution, please use the thumbs down icon to aid my learning.
To begin your journey now, click on

Please select your preferred language
कृपया अपनी पसंदीदा भाषा चुनें