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Is the diameter of a car wheel is 112cm. then its circumference equals. options are : (a) 176cm (b) 352cm (c) 452cm (d) 542cmPlease Answer Me​

Answer»

The DIAMETER of car wheel is 112 cm.To Find :The Circumference of wheel = ?Solution :Here we are GIVEN the diameter of a car wheel as 112 cm and we need to find the circumference of the wheel. To find the circumference of wheel we will use the FORMULA which is given below :Circumference of wheel = 2 × π × rSo in the above formula the value of π is 22/7 and r is unknown. To find radius (r) we need to divide diameter by 2 then we will get the radius (r). Then after finding the radius (r) we will put all the known values in above formula and at last we will get our answer. So,let's do it :R A D I U S⠀O F⠀W H E E L (r) :◗ Radius = Diameter ÷ 2◗Radius = 112 ÷ 2◗Radius = 56 cm• According to the Question :↠Circumference of wheel = 2πr↠Circumference of wheel = 2×22/7×56↠Circumference of wheel = 2 × 22 × 8↠Circumference of wheel = 352 cm∴ The Circumference of a car wheel is 352 cm .



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