Question

find the area of the circle whose diameter =10cm ,and pie is 3.14​

Answer 1

Answer:

dia=10

r=10/2=5cm

area of cirlcle=πr^2

area=3.14*5*5=78.50cm

Answer 2

$\huge \sf \purple{\underline{ \fbox{ \orange{ \: Solution \: \: : }}}}$

Given ,

Diameter of circle = 10 cm

So , radius of circle = 10/2 = 5 cm

We know that , the area of circle is given by

$\mathtt{ \large \fbox{Area \: of \: circle = \pi {(r )}^{2}} }$

Substitute the values , we obtain

$\sf \hookrightarrow Area = 3.14 \times {(5)}^{2} \\ \\ \sf \hookrightarrow Area = \frac{314}{\cancel{100} } \times \cancel{25} \\ \\ \sf \hookrightarrow Area = \frac{314}{4} \\ \\ \hookrightarrow \sf Area = 78.5 \: \: {cm}^{2}$

Hence , the area of circle is 78.5 cm²