Question

find the area of radius circle 7.7cm​

Answer 1

Heya!!!

Given radious of circle = 7.7 cm

Area =

$\pi {r}^{2}$

$\frac{22}{7} \times {7}^{2}$

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

$22 \times 7$

154 cm^2

Glad to help yaaa!!!!

Answer 2

Answer:

Area of circle is 186.34 ${cm}^{2}$

Step-by-step explanation:

Given -

Radius of circle is 7.7 cm

To find -

The area of circle

Solution -

As we know that,

Area of circle = $\pi {r}^{2}$

Where, r is radius of circle

Put the value of r we get

Area of circle = $\pi \times {7.7}^{2}$

Square means multiply the given values with itself twice.

${7.7}^{2} = 7.7 \times 7.7 = 59.29$

Square of 7.7 is 59.29

Area of circle = $\pi \times 59.29$

The value of π is $\frac{22}{7}$

Area of circle = $\frac{22}{7} \times 59.29$

Area of circle =186.34

Hence,

Area of circle is 186.34 ${cm}^{2}$