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AP Board Class 7 Maths Chapter 4 Lines and Angles Ex 4.1 Textbook Solutions PDF: Download Andhra Pradesh Board STD 7th Maths Chapter 4 Lines and Angles Ex 4.1 Book Answers

AP Board Class 7 Maths Chapter 4 Lines and Angles Ex 4.1 Textbook Solutions PDF: Download Andhra Pradesh Board STD 7th Maths Chapter 4 Lines and Angles Ex 4.1 Book Answers
AP Board Class 7 Maths Chapter 4 Lines and Angles Ex 4.1 Textbook Solutions PDF: Download Andhra Pradesh Board STD 7th Maths Chapter 4 Lines and Angles Ex 4.1 Book Answers


AP Board Class 7th Maths Chapter 4 Lines and Angles Ex 4.1 Textbooks Solutions and answers for students are now available in pdf format. Andhra Pradesh Board Class 7th Maths Chapter 4 Lines and Angles Ex 4.1 Book answers and solutions are one of the most important study materials for any student. The Andhra Pradesh State Board Class 7th Maths Chapter 4 Lines and Angles Ex 4.1 books are published by the Andhra Pradesh Board Publishers. These Andhra Pradesh Board Class 7th Maths Chapter 4 Lines and Angles Ex 4.1 textbooks are prepared by a group of expert faculty members. Students can download these AP Board STD 7th Maths Chapter 4 Lines and Angles Ex 4.1 book solutions pdf online from this page.

Andhra Pradesh Board Class 7th Maths Chapter 4 Lines and Angles Ex 4.1 Textbooks Solutions PDF

Andhra Pradesh State Board STD 7th Maths Chapter 4 Lines and Angles Ex 4.1 Books Solutions with Answers are prepared and published by the Andhra Pradesh Board Publishers. It is an autonomous organization to advise and assist qualitative improvements in school education. If you are in search of AP Board Class 7th Maths Chapter 4 Lines and Angles Ex 4.1 Books Answers Solutions, then you are in the right place. Here is a complete hub of Andhra Pradesh State Board Class 7th Maths Chapter 4 Lines and Angles Ex 4.1 solutions that are available here for free PDF downloads to help students for their adequate preparation. You can find all the subjects of Andhra Pradesh Board STD 7th Maths Chapter 4 Lines and Angles Ex 4.1 Textbooks. These Andhra Pradesh State Board Class 7th Maths Chapter 4 Lines and Angles Ex 4.1 Textbooks Solutions English PDF will be helpful for effective education, and a maximum number of questions in exams are chosen from Andhra Pradesh Board.

Andhra Pradesh State Board Class 7th Maths Chapter 4 Lines and Angles Ex 4.1 Books Solutions

Board AP Board
Materials Textbook Solutions/Guide
Format DOC/PDF
Class 7th
Subject Maths
Chapters Maths Chapter 4 Lines and Angles Ex 4.1
Provider Hsslive


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AP Board Class 7th Maths Chapter 4 Lines and Angles Ex 4.1 Textbooks Solutions with Answer PDF Download

Find below the list of all AP Board Class 7th Maths Chapter 4 Lines and Angles Ex 4.1 Textbook Solutions for PDF’s for you to download and prepare for the upcoming exams:

Question 1.
Find which of the following pair of angles are complementary and which are supplementary?

Answer:
90° + 20° = 1 10° ≠ 90° (or) ≠ 180°
So, they are not complementary or not supplementary.


Answer:
6o° + 30° = 90°
So, they are complementary angles.


Answer:
11°+ 79° = 90°
So, they arc complementary angles.


Answer:
125° + 55° = 180°
So, they are supplementary angles.


Answer:
50 + 130° = 180°
So, they are supplementary angles.


Answer:
40° + 120° = 160° ≠ 90° (or) 180°
So, they are not complementary angles or not supplementary angles.

Question 2.
If the ratio of two complementary angles is 2:3, then find the two angles.
Answer:
Given the ratio of two complementary angles = 2 : 3 = 2x : 3x
Sum of the complementary angles = 90° So, 2x + 3x = 90°
⇒ 5x = 90°
⇒ 5𝑥5=905
∴ x = 18°
Then the angles are
2x, 3x = 2(18°), 3(18°) = 36°, 54°

Question 3.
In the figure, ∠A and ∠Q are complementary angles. Find the value of x.

Answer:
Given ∠A = 9x°, ∠Q = 36° and
∠A and ∠Q are complementary angles.
So, ∠A + ∠Q = 90°
⇒ 9x + 36° = 90°
⇒ 9x + 36° – 36° = 90° – 36°
⇒ 9x = 54°
⇒ 9x9=549
⇒ x = 6° .

Question 4.
If ∠A and ∠B are conjugate angles and ∠A = ∠B. Find the two angles.
Answer:
Given ∠A and ∠B are conjugate angles and
∠A = ∠B = x°
So, ∠A + ∠B = 360°
⇒ x° + x° – 360°
⇒ 2x° = 360°
⇒ 2𝑥2=3602
⇒ x = 180°
∴ ∠A = ∠B = x° = 180°

Question 5.
Draw a pair of complementary angles and a pair of supplementary angles.
Answer:

Question 6.
Teacher asked students to draw the complementary angle to the given angle. The students have drawn as follows. Who is correct?

Answer:
Sum of the two angles is 90°, then they are called complementary angles.
Complementary angle of 30° is 60°. So, Sujatha is correct.

Question 7.
In the given figure, ∠B and ∠E are supplementary angles. Find x.

Answer:
Given ∠B and ∠E are supplementary angles.
∠B + ∠E = 180°
⇒ 30° + 5x = 180°
⇒ 30° + 5x – 30° = 180°- 30°
⇒ 5x = 150°
⇒ 5𝑥5=1505
∴ x = 30°

Question 8.
Ashritha said, “In the pair of supplementary angles, one angle must be obtuse angle.” Do you agree? Give reason.
Answer:
No, two acute angles cannot make supplementary angles. Two right angles (90°) can make supplementary angles. One acute and one obtuse angles can make supplementary angles.

Question 9.
Find the angle which is 40° more than its supplementary angle?
Answer:
Let one angle is x°.
Other angle is (x + 40)°.
Given two angles are supplementary.
So, x + x + 40° = 180°
⇒ 2x + 40° = 180°
⇒ 2x + 40° – 40° = 180° – 40°
⇒ 2x = 140°
⇒ 2𝑥2=1402
Angle x = 70°
Other angle is x + 40° = 70° + 40° = 110°
∴ Angles are 70° and 110°.

Question 10.
Srinu said, “Two obtuse angles cannot be supplementary.” Do you agree? Justify your answer.
Answer:
Yes, sum of two obtuse angles is greater than 180°.


AP Board Textbook Solutions PDF for Class 7th Maths


Andhra Pradesh Board Class 7th Maths Chapter 4 Lines and Angles Ex 4.1 Textbooks for Exam Preparations

Andhra Pradesh Board Class 7th Maths Chapter 4 Lines and Angles Ex 4.1 Textbook Solutions can be of great help in your Andhra Pradesh Board Class 7th Maths Chapter 4 Lines and Angles Ex 4.1 exam preparation. The AP Board STD 7th Maths Chapter 4 Lines and Angles Ex 4.1 Textbooks study material, used with the English medium textbooks, can help you complete the entire Class 7th Maths Chapter 4 Lines and Angles Ex 4.1 Books State Board syllabus with maximum efficiency.

FAQs Regarding Andhra Pradesh Board Class 7th Maths Chapter 4 Lines and Angles Ex 4.1 Textbook Solutions


How to get AP Board Class 7th Maths Chapter 4 Lines and Angles Ex 4.1 Textbook Answers??

Students can download the Andhra Pradesh Board Class 7 Maths Chapter 4 Lines and Angles Ex 4.1 Answers PDF from the links provided above.

Can we get a Andhra Pradesh State Board Book PDF for all Classes?

Yes you can get Andhra Pradesh Board Text Book PDF for all classes using the links provided in the above article.

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