Question

Find the area of a circle whose radius is 5 cm

2

Answer 1

Step-by-step explanation:

areo of Circle =πr^2

,=22/7 ×5×5

=22×25/7

=550/7

= 78.57

Answer 2

Required Answer:

Given:

• Radius of the circle = 5cm

To calculate:

• Area of the circle

Calculation:

We know that,

• ${\underline {\boxed {\Large {\bf \gray { Area \: of \: the \: circle = π{r}^{2} } }}}}$

                       

$\sf {\longmapsto Area \: of \: the \: circle = \dfrac{22}{7} \times {5}^{2} }$

                       

$\sf {\longmapsto Area \: of \: the \: circle = \dfrac{22}{7} \times 25 }$

                       

$\sf{\longmapsto Area \: of \: the \: circle = \dfrac{22 \times 25 }{7} }$

                       

$\sf{ \longmapsto Area \: of \: the \: circle = \dfrac{550 }{7} }$

                       

$\sf{ \longmapsto Area \: of \: the \: circle =78.57 {cm}^{2} }$

                       

▬▬▬▬▬▬▬▬▬▬▬

Extra!!

Perimeter:

• Perimeter of square : 4 × side
• Perimeter of rectangle : 2 ( l + b )
• Perimeter of parallelogram : 2 ( l + b )
• Perimeter of rhombus : 4 × side
• Perimeter of trapezium : Sum of sides
• Perimeter of triangle : Sum of sides
• Perimeter of circle (circumference) : 2πr

Area:

• Area of square : (Side)²
• Area of rectangle : l × b
• Area of parallelogram : Base × height
• Area of rhombus : ½ × diagonal$\sf {_1}$ × diagonal$\sf {_2}$
• Area of trapezium : ½ × (sum of parallel sides) × h
• Area of triangle : ½bh
• Area of circle : πr²

▬▬▬▬▬▬▬▬▬▬▬