A road roller of radius 1.4cm makes 10 revolutions. The total distance covered by it.
Answers
Given : A road roller of radius 1.4cm makes 10 revolutions.
To Find : total distance covered
Solution:
Distance covered in one revolution = Circumference
Radius = 1.4 cm
Circumference = 2π (Radius)
π = 22/7
=> Circumference = 2(22/7)(1.4)
=> Circumference = 8.8 cm
Distance covered in one revolution = 8.8 cm
=> Distance covered in 10 revolutions = 10 * 8.8 = 88 cm
The total distance covered by it. = 88 cm
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ANSWER
Given,
- Radius (r) of a road roller = 1.4 cm.
- Revolutions = 10
To Find,
- The total distance covered by it.
Solution,
Distance covered in 1 revolution = Circumference
→ Circumference = 2πr
→ Circumference = 2(22/7)(1.4)
→ Circumference = 8.8 cm
Now
Distance covered in 1 revolution = 8.8 cm
Distance covered in 10 revolutions = 8.8 × 10 = 88 cm