Question

Ir the perimeter of a circle is 540, the radius of the circle will be
(a) 84.05 (b) 85.90
(c) 8625 (d) 870​

Answer 1

$\Large\blue{\sf{ɢɪᴠᴇɴ:}}$

• Circumference of Circle = 540 units.

$\Large{\red{\sf{ꜱᴏʟᴜᴛɪᴏɴ:}}}$

$\boxed{\sf{☆\; Circumference\;of\; circle = 2{\pi}r}}$

$→\;{\sf{2×\frac{22}{7}×r = 540}}$

$→\;{\sf{r = \frac{540}{2}×\frac{7}{22}}}$

$→\;{\sf{r = 85.9090}}$

Radius of the circle = 85.90 units

• Option b.

$\Large{✓}$

Hope It Helps You ✌️

Answer 2

$\huge\bf\purple{รσℓµƭเσɳ}$

$\sf{Circumference\;of\; circle = 2{\pi}r}$

${\sf{2×\frac{22}{7}×r = 540}}$

${\sf{r = \frac{540}{2}×\frac{7}{22}}}$

${\sf{r = 85.9090}}$

Radius of the circle = $\fbox\orange{ 85.90 units}$

Option b is the correct answer