guys pls give me correct answer .......pls
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All sides are equal but Diagonals doesn't therefore it is a Rhombus
A = Diagonals/2
A = 7×6/2 = 42/2 = 21
Area is 21cm²
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Let a1a2a3a4a1a2a3a4 be a four digit natural number such that a1,a2,a3a1,a2,a3 are in arithmetic progression and a2,a3,a4a2,a3,a4 are in geometric progression. If a4=a1−5a4=a1−5 and d+4r=0d+4r=0 then find ∑i=14ai∑i=14ai [where d is common difference of AP and r is common ratio of G.P]
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