Question

The radius of the circle is 3.12m. Calculate the area of the circle.​

Answer 1

Step-by-step explanation:

area of the circle is πr²

r is given as 3.12 m

putting the value we get,

Area = π (3.12)²

Area = 9.7344 π m²

if you want to put the value of π you can but that could make time so this is also the correct answer.

if you got help , mark as brainliest !!

Answer 2

GivEn:

• Radius of Circle = 3.12 cm

To find:

• Area of Circle

SoluTion:

$\setlength{\unitlength}{1mm}\begin{picture}(50,55)\thicklines\qbezier(25.000,10.000)(33.284,10.000)(39.142,15.858)\qbezier(39.142,15.858)(45.000,21.716)(45.000,30.000)\qbezier(45.000,30.000)(45.000,38.284)(39.142,44.142)\qbezier(39.142,44.142)(33.284,50.000)(25.000,50.000)\qbezier(25.000,50.000)(16.716,50.000)(10.858,44.142)\qbezier(10.858,44.142)( 5.000,38.284)( 5.000,30.000)\qbezier( 5.000,30.000)( 5.000,21.716)(10.858,15.858)\qbezier(10.858,15.858)(16.716,10.000)(25.000,10.000)\put(25,30){\line(5,0){20}}\put(25,30){\circle*{1}}\put(29,26){\sf\large{3.12 cm}}\end{picture}$

As we know that,

$\bigstar\;{\boxed{\sf{Area\;of\;circle = \pi r^2}}}\\\\\\:\implies\sf \dfrac{22}{7} \times 3.12 \times 3.12\\\\\\:\implies{\underline{\boxed{\sf{\pink{30.59\;cm^2}}}}}\;\bigstar\\\\\\ \therefore\sf \underline{Hence,\;Area\;of\;circle\;is\; \bf{3059\;cm^2}}$

$\rule{200}2$

★ Additional Information:

• Circle: Circle is a round shape like a ring. It all points in the same plane lies at an equal distance from center.

• Diameter of Circle = 2 × r

• Circumference of Circle = 2πr

• Circle has no vertices or edges.