The inner circumference of a circular track is 176 m. The track is 7 m wide. Calculate the (a) area of the track. (b) cost of putting up a fence along the outer circle at the rate of 12 per metre. (Use л= 22 7​

A uniform circular track is the area bounded by two concentric circles. If thearea of the track is 1144 𝑚2 and its width is 14 m, find the diameters of the twocircles.

by Gagan Pratap the area of a circular field. What will be the cost (in₹) of fencing the circular field at the rate of ₹35 per m? (Use 𝝅=𝟐𝟐𝟕 ) ,d vk;rkdkj ckx dh Hkqtk,a 176 m vkSj 56 m gSA bldk {ks=Qy ,d o`Rrkdkj eSnku ds {ks=Qy ds cjkcj gSA o`Rrkdkj eSnku esa #i;s 35 izfr m dh nj l ckM+ yxkus dh ykxr ¼#i;s esa½ fduh gksxh\ ¼ 𝝅=𝟐𝟐𝟕 dk mi;ksx dhft,½ 1.‍12,100 2.11,000 3.12,320 4.‍12,210 ( ICAR Technician 2023) 37. A wire is in the shape of a rectangle whose sides are in the ratio 4:3, and its area is 5808𝒄𝒎𝟐 . the same wire is bent to form a circle. What is the area (in 𝒄𝒎𝟐) of the circle? एक ताि एक आयत के आकाि का है जिसकी भुिाओं का अनुपात 4:3 है औि इसका क्षेत्रफल 5808𝒄𝒎𝟐 है। उसी ताि को एक वृत्त बनाने के ललए मोड़ा िाता है। वृत्त का क्षेत्रफल (𝒄𝒎𝟐 में) क्या है? A) 9856 B) 5544 C) 6545 D) 7546 38. A park is in a shape of a rectangle with length 180 m and breadth 120 m. At the centre of the park, there is a circular lawn of circumference 502.4m. The area of the park, excluding the area of lawn, in m² is: ,d vk;rkdkj ikdZ dh yackbZ 180 ehVj vkSj pkSM+kbZ 120 ehVj gSA ikdZ ds dsUæ 502.4 ehVj ifjf/k okyk ,d o`Ùkkdkj ykWu gSA ykWu ds {ks=Qy dks NksM+dj] ikdZ dk {ks=Qy m² esa fdruk gksxk\ (a)1540 (b)1405 (c)1504 (d)1450 39. In a circular field there is a rectangular tank of length 130m and 110m. If the area of land portion is 20350 m2 then find the radius of field? एक वृत्ताकाि मैिान में एक 130m × 110m माप वाला आयताकाि टैंक है। यदि शेष भाग का क्षेत्रफल 20350 m2 है तब मैिान की त्रत्रज्या होगी? a)96cm b)105cm c)122cm d)108cm 40. A rectangular sheet of length 42cm and breadth 14cm is cut from a circular sheet. What is the minimum area of circular sheet? एक वृताकाि शीट से एक आयताकाि शीट जिसकी लम्बाई 42cm औि चौड़ाई 14cm है काटा िाता है। तब वृताकाि शीट का न्यूनतम क्षेत्रफल क्या होगा? a)3080cm2 b)1540 cm2 c)770 cm2 d)1050 cm2 41. The perimeter of a semi-circle is 25.7 cm. What is its diameter (in cm)? ( = 3.14) fdlh v/kZo`Ùk dk ifjeki 25.7 cm gsA bldk O;kl ¼lseh- eas½ Kkr djasA ( = 3.14) (a)8 (b)12 (c)10 (d)9 42. The area (in cm²)‍of the semicircle whose radius is 15 cm is: (use 𝝅 = 3.14) एक‍इसे‍अर्धवृत्त‍का‍क्षेत्रफल‍(सेमी² में)‍तजसकी‍तत्रज्या‍15 सेमी‍है:‍(π = 3.14 का‍उियोग‍करें) 1. 365.75 2. 357.25 3. 353.25 4. 361.75 ( ICAR Technician 2023)

Nathan runs around the inside lane of a circular track that has a radius of 29 m. Rachel runs in the outer lane, which is 2.5 m further from the centre of the track.Calculate the distance Rachel covers in each lap, correct to 2 decimal places.

In a rectangular park with dimensions 250 m x 150 m, a 2.5 m wide path all around inside it is to be constructed. Also 2 m wide paths are to be constructed in the centre of the park parallel to its length and the other parallel to its breadth. Find the cost (in) of constructing the paths at ₹80 per sq.m.221680221690221610221780

Cheko helps his grandfather fence the garden on weekends. The garden has an area of 117 m2 and a breadth of 9 metres. The cost of fencing the garden is $42 per metre. How much will it cost to fence the garden?