Geometry

7 chapters 66 solved questions

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Chapters

1. 1 Similarity 16 Q
2. 2 Pythagoras theorem 11 Q
3. 3 Circle 5 Q
4. 4 Geometric constructions
5. 5 Co-ordinate Geometry
6. 6 Trigonometry 25 Q
7. 7 Mensuration 9 Q

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• prove that sin^2θ/cosθ+cosθ=secθ Solution is in img format Trigonometry 2 answers
• Base of a triangle is 9 and height is 5 . base of another triangle Correct answer is 3/4 or 3:4 Video Solution:: https://youtu.be/DzuJr-mGtzc Image solution:: Similarity 1 answer
• In ∆PQR, point S is the midpoint of side QR. If PQ = 11, PR = 17, PS = 13, find QR. In ∆PQR, point S is the midpoint of side QR. [Given] ∴ seg PS is the median. ∴ PQ² + PR² = 2 PS² + 2 SR² [Apollonius theorem] ∴ 11² + 17² =... Pythagoras theorem 1 answer
• In the given figure, if LK = 6√3 find MK, ML, KN, MN and the perimeter of MNKL Solution:: In triangle space LKM , tan30^∘ =MLover LK ⇒ ML=6√( 3 ) × 1 / √( 3 ) =6 cos 30 ^(°) = LK / MK ⇒ MK=dfrac LK cos 30 ^(°) = 6√( 3 )... Pythagoras theorem 1 answer
• Walls of two buildings on either side of a street are parallel to each other. A ladder 5.8 m long is placed Solution:: Correct answer is 8.2 m Video solution https://youtu.be/WmtS_3V0VKQ Pythagoras theorem 1 answer
• A ladder 25m long just reaches the top of a building 24m Given: length of ladder= 25 m building height=24 m By pythagoras theorem , x²=25² -24² =625-576 x²=49 x= 7 Hence the answer is 7 m https://y... Pythagoras theorem 1 answer