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Class 10

MATHS

AREAS RELATED TO CIRCLE

Updated On: 22-5-2021

Answer

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Solution

Join GH and FE <br> Here, breadth of the rectangle BC = 12m <br>

Breadth of the inner rectangle EFGH =

<br> which is equal to the diameter of the semi-circle EJF, d = 4m <br>

Radius of semi-circle EJF , r= 2m <br>

Length of inner rectangle EFGH =

<br>

Area of two semi-circles EJF and HIG =

<br> Now, area of inner rectangle EFGH =

<br> and area of outer rectangle ABCD =

<br>

Area of shaded region = Area of outer rectangle - (Area of two semi - circles + Area of inner rectangle) <br> =

<br> <img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/ARH_NCERT_EXE_MATH_X_C11_S01_033_S01.png" width="80%">

Transcript

Time | Transcript |
---|---|

00:00 - 00:59 | find the area of the shaded region in figure 11.9 if you want to find this distance is equal to 12 this Total distance 12 12 - 4 - 4 with 24 to send him to semicircle here is a to send a semicircle which is a diameter of 4 metre 4 metre so radius is what 4 way to become to metre if you try to find this distance is the rectangle let support the point A B find this distance is |

01:00 - 01:59 | this distance is what is distance to because this is the radius please also to so if you try to find out this distance of this distance is what distance can be written as Total distance is what 26 now find his left eye distance three plus 25 is also writes and the distance 3 plus 25 to what we get is 26 - 10 is equal to 16 now the length of the rectangle ABCD length of rectangle ABCD and his vote this is 16 and b is what was given this informative we have to get ready for what is the radius is |

02:00 - 02:59 | to Navin to find area of shaded region area of area of shaded region equal to nimbin as F g Supriya of rectangle area of rectangle F G H - area of rectangle ABCD area of a hemisphere area of two semicircle semi circle know area of a |

03:00 - 03:59 | w 26 into 12 - area ABCD is what 16 into two floor area of 22 semicircle is what to in 25 Rs 25 Rs 48 is 2612 is what 2612 is equal to 52262 3511 and 312 -64 and this is what this is this is 45 so what we get is 12 - 64 - 45 so it will check 64 from 314 |

04:00 - 04:59 | 16115 2259 Court Pi CM answer thank you for this is not a 314 this is equal to 12 so that is equal to 2048 248 - 45 so this answer thank you |

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