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📝 Exercise Hub — Chapter 6
Ganita Manjari Chapter 6 में Exercise Set 6.1, 6.2, 6.3 और
27-question End-of-Chapter Exercise हैं। नीचे उनका organised index है।
अभी यहाँ exact textbook questions reproduce नहीं किए गए हैं; वे official textbook/PDF के अनुसार अलग exercise pages में one-by-one जोड़े जा सकते हैं।
Exercise Set 6.1
Perimeter, circumference, π, arc length and curved perimeters
• Circle perimeter/circumference
• 3-significant-figure circumference
• Arc length
• Sector perimeter
• Composite shapes with quarter/half/three-quarter arcs
• Tyre revolution and track-stagger applications
• Ratio of circle perimeters/radii
Study method: Exact textbook figure/question खोलकर पहले खुद solve करें। उसके बाद solution लिखते समय Given → Formula/Theorem → Calculation/Proof → Final Answer format रखें।
Exercise Set 6.2
Area of plane figures, Heron's formula, circumcircle/incircle and Brahmagupta
• Rectangle and parallelogram areas
• Triangle area
• Rhombus and trapezium problems
• Heron's formula
• Circumcircle and incircle constructions/reasoning
• Area relations in parallelograms and triangles
• Brahmagupta's formula
• Squaring a rectangle
Study method: Exact textbook figure/question खोलकर पहले खुद solve करें। उसके बाद solution लिखते समय Given → Formula/Theorem → Calculation/Proof → Final Answer format रखें।
Exercise Set 6.3
Area of circles, sectors and segments
• Area of a circle
• Sector area
• Quadrant and semicircle areas
• Minute-hand sweep applications
• Segment area
• Area ratios of inscribed polygons
Study method: Exact textbook figure/question खोलकर पहले खुद solve करें। उसके बाद solution लिखते समय Given → Formula/Theorem → Calculation/Proof → Final Answer format रखें।
End-of-Chapter Exercises
Mixed review — 27 questions
• Algebraic area identities
• Triangle and polygon area problems
• Heron's formula
• Parallelogram and median area reasoning
• Cyclic quadrilateral area
• Circle/sector/segment calculations
• Inscribed square/triangle/hexagon ratios
• Composite shaded-area proofs and constructions
Study method: Exact textbook figure/question खोलकर पहले खुद solve करें। उसके बाद solution लिखते समय Given → Formula/Theorem → Calculation/Proof → Final Answer format रखें।