CBSE Class 10 Sample Paper for 2022 Boards - Maths Basic [MCQ]

CBSE Class 10 Sample Paper for 2021 Boards - Maths Standard →
Class 10
Solutions of Sample Papers for Class 10 Boards

Question 11 - CBSE Class 10 Sample Paper for 2022 Boards - Maths Basic [MCQ] - Solutions of Sample Papers for Class 10 Boards

Last updated at April 16, 2024 by

In the given figure, DE II BC. Which of the following is true?

(a) x=(a + b)/ay    (b) y=ax/(a + b)

(c) x=ay/(a + b)    (d) x/y=a/b

Slide17.JPG

Slide18.JPG

Go Ad-free

Transcript

Question 11 In the given figure, DE II BC. Which of the following is true? (a) π‘₯=(π‘Ž + 𝑏)/π‘Žπ‘¦ (b) 𝑦=π‘Žπ‘₯/(π‘Ž + 𝑏) (c) π‘₯=π‘Žπ‘¦/(π‘Ž + 𝑏) (d) x/𝑦=π‘Ž/𝑏 Since DE βˆ₯ BC ∠ ADB = ∠ ABD ∠ AED = ∠ ACB Thus, by AA Similarity Ξ” ADE ~ Ξ” ABC Since sides are proportional in similar triangles 𝐴𝐸/𝐴𝐢=𝐷𝐸/𝐡𝐢 𝒂/(𝒂 + 𝒃)=𝒙/π’š π‘Žπ‘¦/(π‘Ž + 𝑏)=π‘₯ 𝒙=π’‚π’š/(𝒂 + 𝒃) So, the correct answer is (c)

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo