Question

in a rectangle abcd, ab =20cm , angle bac = 60 degree .calculate side bc and diagonals ac and bd

Answer 1

diagram from given information , As : Here ABCD is a rectangle , So AB = CD and BC = AD We know tanθ= perpendicular base Now In Triangle ABC , we get ⇒tan60°= BC AB ⇒ 3 √ = BC 20 (Asweknowthattan60°= 3 √ ) ⇒BC=20 3 √ ⇒BC=20×1.732 (Asweknowthat 3 √ =1.732) ⇒BC=34.64cm And We know BC = AD , So AD = 34.64 cm