11-Circumference and Area of Circles.pdf
11-Circumference and Area of Circles.pdf
11-Circumference and Area of Circles.pdf
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-2-©F y2l0o1x0c mKMuUtmaK 4Sdo7fitnwwaxrCeY IL1L2CS.7 q NAalXlc WrkiwgVhYtZsf nrleUsLe3rxvWeAdo.e R tMvaldveU 3wxiMtRhn aIIn5fLifnSiKtUeu eGfeSovmSeKtGrbyT.t Worksheet by Kuta S<strong>of</strong>tware LLC15) radius = 9.5 in 16) radius = 9.3 inFind the radius <strong>of</strong> each circle. Use your calculator's value <strong>of</strong> π. Round your answer to the nearest tenth.17) circumference = 62.8 mi 18) circumference = 69.1 yd19) circumference = 12.6 yd 20) circumference = 25.1 ftFind the diameter <strong>of</strong> each circle. Use your calculator's value <strong>of</strong> π. Round your answer to the nearesttenth.21) area = 201.1 in² 22) area = 78.5 ft²23) area = 254.5 in² 24) area = 314.2 in²Find the circumference <strong>of</strong> each circle.25) area = 64π mi² 26) area = 16π in²Find the area <strong>of</strong> each.27) circumference = 6π yd 28) circumference = 22π inCritical thinking question:29) Find the radius <strong>of</strong> a circle so that its area<strong>and</strong> circumference have the same value.
-1-©i K2h0O130o YKGu7tSau 8S3o<strong>of</strong>ntrwoaHrbeh RLuLqC1.N y AAbljly OrQiugqhmttsB BrUe6s0eLrDvxeOdT.q l FMAatd0eK 8wMiMtFh4 XIonafFiQnpiytKeT NGdeWoBmveWt6rsyA.H Worksheet by Kuta S<strong>of</strong>tware LLCKuta S<strong>of</strong>tware - Infinite GeometryName___________________________________<strong>Circumference</strong> <strong>and</strong> <strong>Area</strong> <strong>of</strong> <strong>Circles</strong>Date________________ Period____Find the area <strong>of</strong> each. Use your calculator's value <strong>of</strong> π. Round your answer to the nearest tenth.1)452.4 in² 2)615.8 km²12 in14 km3)254.5 m² 4)380.1 cm²<strong>11</strong> cm9 m5) radius = 2.6 in21.2 in²6) radius = 34.1 in3653.1 in²7) radius = 13.2 km547.4 km²8) radius = 29.9 km2808.6 km²Find the circumference <strong>of</strong> each circle. Use your calculator's value <strong>of</strong> π. Round your answer to thenearest tenth.9)50.3 mi 10)52.2 yd8.3 yd8 mi<strong>11</strong>)26.4 yd 12)39 mi4.2 yd6.2 mi13) radius = 5.2 ft32.7 ft14) radius = <strong>11</strong>.1 ft69.7 ft
-2-©e S2o0B100w JKduDtDaV oSrouf9tBwAaor3eV uLDLBC5.q y pA0lKl9 NrSiug2hLtAsq Crhe2sleerzvNemdC.D 5 sM9aodXeL Rwaixtbh6 sI enjfriAnFiTtXeW VG8e2olmBeEtXr0yy.o Worksheet by Kuta S<strong>of</strong>tware LLC15) radius = 9.5 in16) radius = 9.3 in59.7 in58.4 inFind the radius <strong>of</strong> each circle. Use your calculator's value <strong>of</strong> π. Round your answer to the nearest tenth.17) circumference = 62.8 mi10 mi18) circumference = 69.1 yd<strong>11</strong> yd19) circumference = 12.6 yd2 yd20) circumference = 25.1 ft4 ftFind the diameter <strong>of</strong> each circle. Use your calculator's value <strong>of</strong> π. Round your answer to the nearesttenth.21) area = 201.1 in²16 in22) area = 78.5 ft²10 ft23) area = 254.5 in²18 in24) area = 314.2 in²20 inFind the circumference <strong>of</strong> each circle.25) area = 64π mi²16π mi26) area = 16π in²8π inFind the area <strong>of</strong> each.27) circumference = 6π yd9π yd²28) circumference = 22π in121π in²Critical thinking question:29) Find the radius <strong>of</strong> a circle so that its area<strong>and</strong> circumference have the same value.r = 2
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