Question

Circumference of a circle is 44 cm. Find the radius and area of traingle. (use π = 22/7)​

Answer 1

Answer:

$c = 44 \: cm$

$2\pi \times r = 44$

$2 \times \frac{22}{7} \times r = 44$

$r = 44 \times \frac{7}{22} \times \frac{1}{2}$

$r = 7cm$

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

$= \frac{22}{7} \times 7 \times 7$

$154 \: cm {}^{2}$

Answer 2

Correct Question:

• Circumference of a circle is 44 cm. Find the radius amd area of the circle. ( Use π = 22/17)

Answer:

$\large\bold\red{Radius=7\:cm}\\\\\large\bold\red{Area=154\:{cm}^{2}}$

Step-by-step explanation:

Given,

A circle having,

• Circumference = 44 cm

Let the radius of cirlce = r

Therefore,

We get,

$= > 2\pi r = 44 \\ \\ = > 2 \times \frac{22}{7} \times r = 44 \\ \\ = > r = \frac{44 \times 7}{44} \\ \\ = > \bold{ r = 7 \: cm}$

Therefore,

Radius = 7 cm

Now,

We know that,

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

Therefore,

We get,

$= > a = \pi \times {7}^{2} \\ \\ = > a = \frac{22}{7} \times 49 \\ \\ = > a = 22 \times 7 \\ \\ = > \bold{a = 154 \: {cm}^{2} }$

Hence,

Area of cirlce = 154 ${cm}^{2}$