Question

1. Construct formulae to find the following.
(i) The number of weeks (w) in 'y' number
of years.
(ii) The number of weeks (w) that represents d'
number of days.
(iii) The length () of a square, given its area 'a'.
(iv) The length (l) of a cube, given its volume 'v'.
(1) The perimeter (p) of an equilateral triangle with
one side measuring 's'.
(vi) The volume (v) of a cuboid. given its length ().
breadth (b), and height (h).
(vii) The total surface area (a) of a cube, given its
length 7.
(viii) The price (p) of 'c' number of coconuts
costing 20 each.

Answer 1

1. w/y
2. d/w
3. l/a
4. l/v
5. 3×s
6. lbh
7. 6(7)
8. 2× 7^2 = 249
9. 20/c