The radius of a wheel is 20 cm. What is the distance it travelled after making 30 complete turns? (Take = 3.14.)
Question
The radius of a wheel is 20 cm. What is the distance it travelled after making 30 complete turns? (Take = 3.14.)
Solution
To solve this problem, we need to use the formula for the circumference of a circle, which is 2πr, where r is the radius of the circle.
Step 1: Calculate the circumference of the wheel. The radius of the wheel is given as 20 cm. So, the circumference is 2 * 3.14 * 20 = 125.6 cm.
Step 2: Calculate the distance travelled after making 30 complete turns. The distance travelled by the wheel for one complete turn is equal to its circumference. So, for 30 complete turns, the wheel travels 30 * 125.6 = 3768 cm.
So, the wheel travels 3768 cm after making 30 complete turns.
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