Question

Find the area of a circle made of l m wire ?
(a) 795.45cm (b) 799 cm
(c) 796 cm
(d) 798 cm?
​

Answer 1

1m....= circumference

radius=?

circumference/2 r = π/22/7

1m/2r= 22/7

44r= 7metre or 700cm

r= 700/44cm

Area= πr²= 22/7*700/44*700/44= 70000/88=

= 35000/44= 17500/22= 8750/11= 795.45 cm ans...

Answer 2

Step-by-step explanation:

see the circle is made up of 1m= 100cm,means it is the circumfrence of circle.

$circumfrence = 2\pi \: r$

100=2×22/7×r

700/44=r

15.90 = radius

now we find area

$area = \pi r {}^{2}$

area=22/7×15.90×15.90

= 22/7×252.81

= 794.54 cm^2

hence (A) IS THE NEAREST ANSWER MATCHED..

THX