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In Fig.8.2, ABCD and AEFG are two parallelograms. If ∠C = 55º, determine ∠F.
In Fig.8.4, AX and CY are respectively the bisectors of the opposite angles A and C of a parallelogram ABCD. Show that AX || CY.
A diagonal of a parallelogram bisects one of its angle. Prove that it will bisect its opposite angle also.
In Fig. 9.4, the area of parallelogram ABCD is :
In Fig. 9.5, if parallelogram ABCD and rectangle ABEF are of equal area, then :
Two parallelograms are on equal bases and between the same parallels. The ratio of their areas is
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