Exercise 3.3 | Ch 3 Understanding Quadrilateral | Class 8 Maths RBSE NCERT New Syllabus 2024-25

EXERCISE 3.3 1. Given a parallelogram ABCD. Complete each statement along with the definition or property used. (i) AD = ...... (ii) ∠ DCB = ...... (iii) OC = ...... (iv) m ∠DAB + m ∠CDA = ...... 2. Consider the following parallelograms. Find the values of the unknowns x, y, z. निष्‍कर्ष 3.3 1. एक समांतर चतुर्भुज ABCD को देखते हुए। प्रत्येक को पूरा करें इस्तेमाल की गई परिभाषा या संपत्ति के साथ बयान। (i) AD = ...... (ii) ...... DCB = ...... (iii) OC = ...... (iv) m ABDAB + m =CDA = ...... 2. निम्नलिखित समांतर चतुर्भुज पर विचार करें। अज्ञात x, y, z के मान ज्ञात कीजिए। 3. Can a quadrilateral ABCD be a parallelogram if (i) ∠D + ∠B = 180°? (ii) AB = DC = 8 cm, AD = 4 cm and BC = 4.4 cm? (iii) ∠A = 70° and ∠C = 65°? 4. Draw a rough figure of a quadrilateral that is not a parallelogram but has exactly two opposite angles of equal measure. 5. The measures of two adjacent angles of a parallelogram are in the ratio 3 : 2. Find the measure of each of the angles of the parallelogram. 6. Two adjacent angles of a parallelogram have equal measure. Find the measure of each of the angles of the parallelogram. 7. The adjacent figure HOPE is a parallelogram. Find the angle measures x, y and z. State the properties you use to find them. 8. The following figures GUNS and RUNS are parallelograms. Find x and y. (Lengths are in cm) 9. In the above figure both RISK and CLUE are parallelograms. Find the value of x. 10. Explain how this figure is a trapezium. Which of its two sides are parallel? (Fig 3.32) 11. Find m∠C in Fig 3.33 if AB DC . 12. Find the measure of ∠P and ∠S if SP RQ in Fig 3.34. (If you find m∠R, is there more than one method to find m∠P?) व्यायाम ३.३ 3. क्या चतुर्भुज ABCD एक समांतर चतुर्भुज हो सकता है (i) iD + =B = 180 °? (ii) AB = DC = 8 सेमी, AD = 4 सेमी और BC = 4.4 सेमी? (iii) iiiA = 70 ° और 65C = 65 °? 4. चतुर्भुज का एक मोटा आंकड़ा खींचना जो समांतर चतुर्भुज नहीं है लेकिन समान माप के दो विपरीत कोण हैं। 5. एक समांतर चतुर्भुज के दो आसन्न कोणों का माप 3: 2 के अनुपात में है। 2. समांतर चतुर्भुज के प्रत्येक कोण का माप ज्ञात कीजिए। 6. समांतर चतुर्भुज के दो समीपवर्ती कोणों के बराबर माप है। समांतर चतुर्भुज के प्रत्येक कोण का माप ज्ञात कीजिए। 7. आसन्न आकृति HOPE एक समांतर चतुर्भुज है। कोण के उपाय x, y और z ज्ञात कीजिए। उन्हें खोजने के लिए आपके द्वारा उपयोग किए गए गुणों को बताएं। 8. निम्नलिखित आंकड़े GUNS और RUNS समांतर चतुर्भुज हैं। X और y ज्ञात कीजिए। (लंबाई सेमी में हैं) 9. उपरोक्त आकृति में RISK और CLUE दोनों समांतर चतुर्भुज हैं। एक्स का मान ज्ञात करें। 10. बताइए कि यह आकृति एक ट्रेपेज़ियम कैसे है। इसके दो पक्ष समानांतर में से कौन से हैं? (चित्र 3.32) 11. AB 3. DC में छवि 3.33 में m ifC ज्ञात कीजिए। 12. .P और ∠S का माप ज्ञात करें यदि SP 3.Q में अंक 3.34 है। (यदि आप m IfR पाते हैं, तो क्या m ?P खोजने के लिए एक से अधिक तरीका है? My app Link https://play.google.com/store/apps/de... Refferal Code "18DEC19" for 90% Discount Class 8 All Subjects :: http://on-app.in/app/oc/118560/kopdy class 9 full course :: http://on-app.in/app/oc/145557/kopdy Class 10 All Sujects :: http://on-app.in/app/oc/116521/kopdy My Telegram Channel Please Join : https://t.me/mankiganit My Telegram Group Please Join : https://t.me/+UTk9aqHoevaQhhtM My Other channels Hindi Medium Channel : Vishwakarma Classes :    / marsa143   English medium math (Class 6 to 10) : Mann Ki Ganit :    / @mannkiganit   Accountancy Channel :    / @mannkiganitaccount   for Competition Classes (Dear Guruji) :    / @mannkikhojj   Tushar Gaming :    / channel   Class 10 Maths :    / @kuldeepsirvlog   Class 9 Maths :    / @rekha-kjangid   Class 8 Maths :    / @peepaliyakalan   Class 7 Maths :    / @tushar-rjangid   Class 6 Maths :    / @yash-rjangid   My Son Channel (Handsom Boy Tushar) :    / @yash-rjangid  

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