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BSEB Class 7 Maths Chapter 7 सर्वांगसमता Textbook Solutions PDF: Download Bihar Board STD 7th Maths Chapter 7 सर्वांगसमता Book Answers

 BSEB Class 7 Maths Chapter 7 सर्वांगसमता Textbook Solutions PDF: Download Bihar Board STD 7th Maths Chapter 7 सर्वांगसमता Book Answers

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

Bihar Board Class 7th Maths Chapter 7 सर्वांगसमता Books Solutions

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Find below the list of all BSEB Class 7th Maths Chapter 7 सर्वांगसमता Textbook Solutions for PDF’s for you to download and prepare for the upcoming exams:

Bihar Board Class 7 Maths सर्वांगसमता Ex 7.1

प्रश्न 1.
(i) AB = KL
CD = IJ
EF = GH
(ii) AB और KL रेखाखण्डों की माप = 3 cm.
CD और IJ रेखाखण्डों की माप = 2.4 cm.
EF और GH रेखाखण्डों की माप = 4 cm.
इनके माप बराबर हैं, इसलिए ये रेखाखण्ड सर्वांगसम हैं।

प्रश्न 2.
(i) ∠ABC = ∠JKL
∠DEF = ∠GHI
∠MNO = ∠PQR
(ii) ∠ABC = ∠JKL
∠DEF = ∠GHI
∠MNO = ∠PQR

प्रश्न 3.
दो कोण सर्वांगसम होते हैं, जब उनके माप बराबर हैं।
∠ABC = ∠DEF
∠ABC = 70°
∠DEF = 70°

प्रश्न 4.
(i) ∆XYZ = ∆ABC
भुजा – कोण
XY ↔ AC – ∠X ↔ ∠A
YZ ↔ BC – ∠Y ↔ ∠B
XZ ↔ AB – ∠Z ↔ ∠C
(ii) ∆ABC = ∆ABD
भुजा – कोण
AB ↔ AB – ∠ABC ↔ ∠A
BC ↔ AD – ∠BCA ↔ ∠D
AC ↔ DB – ∠BAC ↔ ∠B
(iii) ∆ABD = ∆CDB
भुजा – कोण
AB ↔ DC – ∠ABD ↔ ∠D
BD ↔ BD – ∠BCA ↔ ∠B
AD ↔ BC – ∠DAB ↔ ∠C

प्रश्न 5.
हाँ

प्रश्न 6.
प्रश्नानुसार,
पहले आयत की लम्बाई = 10 cm.
पहले आयत की चौड़ाई = 8 cm.
दूसरे आयत की लम्बाई = 12 cm.
दूसरे आयत की चौड़ाई = 8 cm.
दोनों आयत को सर्वांगसम करने के लिए-
पहले आयत की लम्बाई = 10 + 2 = 12
पहले आयत की लम्बाई में 2 cm. बढ़ाना होगा।

Bihar Board Class 7 Maths सर्वांगसमता Ex 7.2

प्रश्न 1.
सर्वांगसम प्रतिबंधों का प्रयोग करें-
(i) SSS – (भुजा भुजा-भुजा)
(ii) SAS – (भुजा-कोण-भुजा)
(iii) ASA – (कोण-भुजा-कोण)
(iv) RHS – (समकोण -कर्ण-भुजा)

प्रश्न 2.
कारण
(i) AC = FD क्योंकि ΔABC = ΔDEF
(ii) ∠BAC = ∠FDE क्योंकि ΔABC = ΔDEF
(iii) ∠ACB = ∠EFD क्योंकि ΔABC = ΔDEF

प्रश्न 3.

प्रश्न 4.
ΔABC में
∠A = 40°
∠C = 35°
∠B = 180° – (35° + 40°) = 105°
AB = 2.5
ΔDEF में
∠E = 105°
∠F = 35°
∠D = 40°
DE = 2.5 cm
कोण-भुजा-कोण से
ΔABC = ΔDEF

प्रश्न 5.
ΔABD = ΔBDC
यहाँ AB = DC
BD = BD
भु. = भु० भु० से
ΔABC = ΔBDC

प्रश्न 6.
(i) AB = PQ
AC = PR
BC = QR

प्रश्न 7.
ΔABD और ΔACD
AB = AC
BD = CD
ΔPQR और ΔSOQ
OP = OS
OR = OQ
∠POR = ∠SOQ

प्रश्न 8.
(i) AC = PR.
BC = QR
∠R = ∠C
भुजा-कोण-भुजा (SAS)
(ii) 4 cm = 4 cm
3 cm = 3 cm
2 cm = 2 cm
भुजा-भुजा-भुजा से सर्वांगसम है।
(iii) ∠90° = ∠90° (समकोण Δ)
∠30° = ∠30°
5 cm = 5 cm
कोण-भुजा-कोण से सर्वांगसम है।

प्रश्न 9.
AB = PR
BC = PQ
∠B = ∠P = 90°
भुजा-कोण-भुजा से
ΔABC = ΔPQR सर्वांगसम है।

प्रश्न 10.
ΔBAC तथा ΔCDB में
AC = BD
∠ABC = ∠BCD
∠ACB = ∠DBC
कोण-भुजा-कोण से
ΔBAC = ΔCOB
(ii) ΔRPQ तथा ΔRST में
PQ = ST
QR = RT
∠PQR = ∠STR
भुजा-कोण-भुजा से
ΔRPQ = ΔRST

Bihar Board Class 7th Maths Chapter 7 सर्वांगसमता Textbooks for Exam Preparations

Bihar Board Class 7th Maths Chapter 7 सर्वांगसमता Textbook Solutions can be of great help in your Bihar Board Class 7th Maths Chapter 7 सर्वांगसमता exam preparation. The BSEB STD 7th Maths Chapter 7 सर्वांगसमता Textbooks study material, used with the English medium textbooks, can help you complete the entire Class 7th Maths Chapter 7 सर्वांगसमता Books State Board syllabus with maximum efficiency.

FAQs Regarding Bihar Board Class 7th Maths Chapter 7 सर्वांगसमता Textbook Solutions

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