Understanding Quadrilaterals Class VIII

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Quiz 1 Made by Mrs. Pintu Prasad

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1. If the diagonals of a quadrilateral bisect each other at right angles, it will be a

5 points

(a) rhombus

(b) trapezium

(d) kite

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2. The sum of the angles of a quadrilateral is

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(a) 180°

(b) 270°

(d) 300°

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3. In a square ABCD, the diagonals meet at point O. The ∆ AOB is

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(a) isosceles right triangle

(b) equilateral triangle

(d) scalene right triangle

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4. ABCD is a quadrilateral in which AB = 5 cm, CD = 8 cm and the sum of angle A and angle D is 180°. What is thename of this quadrilateral?

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(a) Parallelogram

(b) Trapezium

(d) Can not be determined

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5. Ravi has a farm land which is triangular in shape.What is the sum of all the exterior angles taken in an order of the farm land?

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(a) 90°

(b) 180°

(d) Can not be determined.

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6. If three angles of a quadrilateral are each equal to 75°, the fourth angle is

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(a) 150°

(b) 135°

(d) 75°

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7. What is the maximum number of obtuse angles that a quadrilateral can have ?

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(a) 1

(b) 2

(d) 4

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8. How many non-overlapping triangles can we make in a n-gon(polygon having n sides), by joining the vertices?

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(a) n –1

(b) n –2

(d) n –4

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9.If two adjacent angles of a parallelogram are (5x – 5)° and (10x +35)°, then the ratio of these angles is

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(a) 1 : 3

(b) 2 : 3

(d) 1 : 2

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10. The number of sides of a regular polygon where each exterior angle has a measure of 45° is

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(a) 8

(b) 10

(d) 6

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