Question

Abcd is a rectangle (question 3 )

Answer 1

we know that the diagonals of a rectangle are bisector of each other
so,
EO=FO
and IO=VO

now angleVOI=angleEOF. ... (vertically opposite angles)

EOF=126°
now, in ∆ EOF

angle OFE= angle OEF. ...(base angles of isosceles triangle)

we know,
EOC+OFE+OEF=180°...(angle sum property)

126+2OEF=180°. ....(OFE=OEF)

OEF=180-126/2

OEF=54/2

OEF=27°

therefore, OEF=27°

hope it helped u..

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