Thursday, December 24, 2009

Math Quiz VI

Note : All the following questions pertain
to the figure on the left which shows
a square with semicircles on its opposite sides.


1. If each side of the square is 14 cm, the perimeter of the figure equals :
a) 56 cm b) 64 cm c) 72 cm d) 84 cm

2. If each side of the square is 14 cm, the area of the figure equals :
a) 308 sq cm b) 420 sq cm c) 504 sq cm d) 630 sq cm

3. If the radius of each semicircle is 'r', the perimeter of the figure equals :
a) r(pi + 4) b) 4r(pi +2) c) 2r(pi + 2) d) 2r(pi + 4)

4. If the radius of each semicircle is 'r', the area of the figure equals :
a) (r^2)[pi + 2] b) (r^2)[pi + 4] c) 2(r^2)[pi + 4] d) 4(r^2)[pi + 1]

5. If the radius of each semicircle is 3.5 cm, the perimeter of the figure equals :
a) 35 cm b) 42 cm c) 50 cm d) 56 cm

6. If the radius of each semicircle is 3.5 cm, the area of the figure equals :
a) 87.5 sq cm b) 60 sq cm c) 93.5 sq cm d) 105 sq cm

7. If the perimeter of the figure is 72 cm, the radius of each semicircle is :
a) 7 cm b) 10.5 cm c) 14 cm d) 17,5 cm

8. If the perimeter of the figure is 72 cm, the area of the figure is :
a) 560 sq cm b) 616 sq cm c) 630 sq cm d) 700 sq cm

9. If the area of the figure is 1837.50 sq cm, then the radius of the semicircle is :
a) 10.5 cm b) 14 cm c) 17.5 cm d) 21 cm

10. If the area of the figure is 1837.50 sq cm, then the perimeter of the figure is :
a) 280 cm b) 350 cm c) 420 cm d) 490 cm

11. If the diagonal of the square is 7(rt2) cm, then the perimeter of the figure is :
a) 30 cm b) 40 cm c) 50 cm d) 60 cm

12. If the diagonal of the square is 7(rt2) cm, then the area of the figure is :
a) 70 sq cm b) 73.5 sq cm c) 80.5 sq cm d) 87.5 sq cm


----------Answer Key----------

1. (c) 2. (c) 3. (d) 4. (b) 5. (c) 6. (a)
7. (c) 8. (b) 9. (a) 10. (b) 11. (c) 12. (d)

2 comments:

  1. sir try this
    0.9999999999......(infinite times is
    a)>1
    b)<1
    c)=1
    d)i am a dimwit and cant decide between the three

    ans- c

    arunabh

    ReplyDelete
  2. Hi Arunabh! That's a good one... a classic limits example!

    ReplyDelete