Question

11. Which decimal fraction multiplied by itself will
give the product 6.1504?
12. What is the length of the side of the square
whose area is 28.5156 sq cm?
13. Find the length of the side of a square whose area
is equal to the sum of the areas of two rectangles,
whose areas are 4.1698 sq cm and 6.3927 sq cm.
14. Find the square root of 1 - (0.05)2 to three
decimal places.
15. The product of two numbers is 4.6875 and one
of them is thrice the other. Find the numbers.
16. Three numbers are such that the product of the
first and second is 1.8, that of the second and
third is 2.7 and that of first and third is 2.16.
Find the numbers.
17. The area of a square garden is 231.04 sq m.
Find the length of railing required to fence it.
18. Find the diagonal of a rectangle whose length
and breadth are 16.08 cm and 12.06 cm
respectively
19. A ladder, 17.5 metres long, stands upright
against a wall. How far must the bottom of the
ladder be pulled out, so that the height of the
top may be 14 metres.​

Answer 1

Answer:

11-3.0752

12-6.1289

13-