Question

A car wheel makes 2500 revolution in moving 5.5 km. Find the diameter and circumference of the car wheel.



. Answer is 70 cm and 220 cm.
. Show me expllenation. ​

Answer 1

Answer:

The diameter of circle is 0.7 m and circumference of car wheel is 2.2 m

Step-by-step explanation:

Distance traveled in 2500 revolutions= 5.5 km

Distance traveled in 1 revolution = \frac{5.5}{2500}=0.0022 km

2500

5.5

=0.0022km

1 km = 1000 m

0.0022 km = 2.2 m

So, Circumference of wheel = 2.2 m

Formula of circumference of wheel = 2 \pi r2πr

So, 2 \pi r = 2.22πr=2.2

2 \times \frac{22}{7} \times r = 2.22×

7

22

×r=2.2

r = \frac{2.2 \times 7}{2 \times 22}r=

2×22

2.2×7

r=0.35 m

So, Diameter of wheel = 2r = 2(0.35)= 0.7 m

Hence The diameter of circle is 0.7 m and circumference of car wheel is 2.2 m

Step-by-step explanation:

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