Which of the following can be four interior angles of a quadrilateral?
(a) 140°, 40°, 20°, 160° (b) 270°, 150°, 30°, 20°
(c) 40°, 70°, 90°, 60° (d) 110°, 40°, 30°, 180°
If the adjacent angles of a parallelogram are equal, then the
parallelogram is a
(a) rectangle (b) trapezium
(c) rhombus (d) any of the three
Length of one of the diagonals of a rectangle whose sides are 10 cm
and 24 cm is
(a) 25 cm (b) 20 cm (c) 26 cm (d) 3.5 cm
The angle between the two altitudes of a parallelogram through the
same vertex of an obtuse angle of the parallelogram is 30°. The
measure of the obtuse angle is
(a) 100° (b) 150° (c) 105° (d) 120°
The sum of adjacent angles of a parallelogram is
(a) 180° (b) 120° (c) 360° (d) 90°
If PQRS is a parallelogram, then ∠P – ∠R is equal to
(a) 60° (b) 90° (c) 80° (d) 0°
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