25. an angle of a parallelogram is two-third of its adjacent angle, find the angles of
the parallelogram.
26. The measure of one angle of a parallelogram is 70°. What are the measures of the
remaining angles?
27. he perimeter of a parallelogram is 150 cm. One of its sides is greater than the other
by 25 cm. Find the length of the sides of the parallelogram.
28. The shorter side of a parallelogram is 4.8 cm and the longer side is half as much
again as the shorter side. Find the perimeter of the parallelogram.
29. The angle between the altitudes of a parallelogram, through the same vertex of an
S obtuse angle of the parallelogram is 60°. Find the angles of the parallelogram.
30.n a parallelogram ABCD, AB = 10cm, AD = 6 cm. The bisector of A meets DC in E,
AE and BC produced meet at F. Find the length CF.
31.If the diagonals of a rhombus are 12 cm and 16 cm, find the length of each side.
32. ABCD is a rhombus. If ACB = 40°, find ADB.
33. The sides of a rectangle are in the ratio 4: 5. Find its sides if the perimeter is 90
cm.
34. Find the length of the diagonal of a rectangle whose sides are 12 cm and 5 cm.
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