WebAB2+CD2+2AB.CD. D. BC2+AD2+2BC.AD. Viewed by: 529students. Solutions. (1) (a): In ΔABD,∠A is acute. So BD2=AD2+ AB2−2AB.AQ ---(i) In ΔABC,∠B is acute. So, … WebSolution Given, quadrilateral ABCD, in which ∠A+∠D= 90∘ To prove : AC2+BD2 = AD2+BC2 Construction : Produce AB and CD to meet at E. Also, join AC and BD. Proof : In ΔAED, ∠A+∠D= 90∘ [given] ∴ ∠E= 180∘−(∠A+∠D) = 90∘ [because sum of all angles in a triangle= 180∘] Then, by using Pythagoras theorem, AD2 = AE2+DE2 ..(i) I n ΔBEC,
ABCD is a trapezium such that AB CD. If AC2 + BD2 13 cm and …
WebFeb 19, 2012 · In a trapezium ABCD , if AB ll CD , then (AC2 - BD2 )= (i) BC2 + AD2 - Maths - Quadrilaterals - 1790859 Meritnation.com Class-9 » Maths Quadrilaterals Anmol Jain, asked a question Subject: Maths, asked on 19/2/12 In a trapezium ABCD , if AB ll CD , then (AC 2 - BD 2 )=? (i) BC 2 + AD 2 + 2BC x AD (ii) AB 2 + CD 2 + 2AB x BC WebDec 13, 2011 · ABCD is a trapezium in which AB is parallel to CD Then AC2 + BD2 = a)AD2 + BC2 - Maths - Quadrilaterals - 1555323 Meritnation.com Class-9 » Maths Quadrilaterals … irish moss for walkways
[Solved] ABCD is a trapezium in which AD BC, AB = 5 cm, BC
WebMar 11, 2016 · In a trapezium abcd,if ab cd, then (ac²+bd²) = - Maths - Quadrilaterals. NCERT Solutions; Board Paper Solutions; Ask & Answer; School Talk; Login; GET APP; Login Create Account. ... BC2 + AD2 = AC2 + BD2 +2AB2 – 2AF ·AB – 2BE·AB ⇒AC2 +BD2 = BC2 + AD2 – 2 AB [AB – AF – BE] WebDec 4, 2024 · In a trapezium ABCD, AB DC and DC = 2AB. EF A B,where E and F lie on BC and AD respectively BE/EC = 4/3. Diagonal DB intersects EF at G. Prove that, 7EF = 11AB cbse class-10 1 Answer +1 vote answered Dec 4, 2024 by Maryam (79.7k points) selected Dec 19, 2024 by Vikash Kumar Best answer Adding eqns. (ii) and (iii), WebFeb 19, 2012 · In a trapezium ABCD , if AB ll CD , then (AC2 - BD2 )= (i) BC2 + AD2 + 2BC x AD (ii) AB2 + CD2 + 2AB x BC (iii) AB2 + CD2 + 2AD x BC (iv) BC2 + AD2 + 2AB x CD - … port archer washington