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Solve the following questions.
(i) Lengths of two adjacent sides of a parallelogram are in the ratio of 5 : 7.
Find the sum of any two adjacent sides of the parallelogram, if its perimeter is 1920 cm.
(ii) In a rectangle ABCD, the diagonals intersect at O. If ∠AOB = 62°, then ∠ODC =
(i) | (ii) | |
---|---|---|
A | 960 cm | 59° |
B | 740 cm | 39° |
C | 1150 cm | 48° |
D | 960 cm | 42° |