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8th

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TeamxDHell OP

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20 questions

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- 1. Multiple Choice1 minute1 pt
Which of the following statements is incorrect ?

A rectangle has all angles and all sides equal to each other.

A hexagon as 6 sides.

A regular octagon has 8 sides of equal length.

A rhombus and a rectangle are irregular polygons.

- 2. Multiple Choice1 minute1 pt
What is the sum of exterior angles of a quadrilateral?

180

90

360

540

- 3. Multiple Choice1 minute1 pt
The diagonals do not necessarily intersect at right angles in a ?

paralellogram

square

rhombus

kite

- 4. Multiple Choice1 minute1 pt
The measure of each interior angle of a rectangular polygon of 12 sides is ?

90

120

140

150

- 5. Multiple Choice1 minute1 pt
If a convex polygon has n sides, the no. of diagonals is given by ?

$\frac{n\left(n+3\right)}{2}$

$\frac{n\left(n-3\right)}{2}$

$\frac{n+\left(n-3\right)}{2}$

$\frac{n+\left(n+3\right)}{2}$

- 6. Multiple Choice1 minute1 pt
How many pairs of adjacent sides does a hexagon have ?

4

6

8

5

- 7. Multiple Choice1 minute1 pt
What is the minimum interior angle possible for a regular polygon ?

100

60

120

80

- 8. Multiple Choice1 minute1 pt
What is the formula for finding angle sum of a polygon if n is the number of sides ?

(n-1)x180

(n+1)x180

(n-2)x180

(n+2)x180

- 9. Multiple Choice1 minute1 pt
A circle is a ?

Simple closed curve

Simple curve

polygon

open curve

- 10. Multiple Choice1 minute1 pt
The quadrilateral whose diagonals bisect at right angles is ?

rectangle, trapezium

parallelogram, rectangle

square, rhombus

parallelogram, trapezium

- 11. Multiple Choice1 minute1 pt
if PQRS is a parallelogram then <P-<R is how much degree?

90

0

180

360

- 12. Multiple Choice1 minute1 pt
If a quadrilateral ABCD is such that AB=AD, BC=CD then it is called a ?

parallelogram

square

rectangle

kite

- 13. Multiple Choice1 minute1 pt
How many diagonals does a regular hexagon have?

6

8

9

12

- 14. Multiple Choice2 minutes1 pt
The diagonals of a rhombus are 6 cm and 8 cm. What will be the length of a side of the rhombus ?

5 cm

14 cm

10cm

25 cm

- 15. Multiple Choice3 minutes1 pt
The angles of a quadrilateral are in the ratio 2:3:5:8, the angles are?

130,70,120,140

45,75,160.80

40,60,100,160

100,40,75,145

- 16. Multiple Choice3 minutes1 pt
The ratio of two sides of the parallelogram is 4:3. if its perimeter is 56 cm, then the length of its sides are?

30,26

18,10

20,8

16,12

- 17. Multiple Choice3 minutes1 pt
The sides of a pentagon are produced in order and exterior angles obtained are of measures x, 2x, (3x+10), (4x+5) and 5x, what will be the value of x ?

25

23

24

26

- 18. Multiple Choice3 minutes1 pt
The measures of the angles of a quadrilateral ABCD are are in the ratio 1:2:3:4, which one of the statement is true?

AC=BC

AB II CD

AD II BC

None of the above

- 19. Multiple Choice3 minutes1 pt
Two adjacent angles of a parallelogram are (2y+10) and (3y-40), the measures of all the angles are ?

$84\degree,96\degree,84\degree,96\degree\ \ \ \ \ \ \$

$100\degree,80\degree,100\degree,80\degree$

$82\degree,98\degree,82,98\degree$

$86\degree,94\degree,86\degree,94\degree$

- 20. Multiple Choice3 minutes1 pt
ABCD is a rectangle. Its diagonals meet at O. OA=(3x+5)cm and OB=(2x+9), what is AC ?

34 cm

36 cm

37 cm

35 cm

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