The length of the minute hand of a clock is 7 cm then how much distance does it cover in 1 hour
Answers
Answered by
11
Step-by-step explanation:
Radius = 7 cm.
Angle covered in one hour = 360° (A full rotation)
Therefore, area covered will be equal to the area of the circle, and the circumference will also be equal.
So,
Circumference = 2πr = 2×22/7×7
Cancel both sevens, and you'll get 2×22
= 44 cm
Area = πr² = 22/7×7×7
Cancel two sevens, and you will get 7×22
= 154 cm²
Hope it helps...
Please mark my answer as the brainliest...
Radius = 7 cm.
Angle covered in one hour = 360° (A full rotation)
Therefore, area covered will be equal to the area of the circle, and the circumference will also be equal.
So,
Circumference = 2πr = 2×22/7×7
Cancel both sevens, and you'll get 2×22
= 44 cm
Area = πr² = 22/7×7×7
Cancel two sevens, and you will get 7×22
= 154 cm²
Hope it helps...
Please mark my answer as the brainliest...
Answered by
1
Answer:
154 cm Square
Step-by-step explanation:
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