the length of a minute hand of a wall clock is 7cm , find the area swept by it in half an hour.
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Here's ur answer .
The area covered by the minute hand in 60 minutes = area of the circle of radius 7 cm
The area covered by minute hand in 30 minutes will be half of the area of circle
i.e.
=) 1/2×π×r×r
=) 1/2×(22/7)×(7×7)
=) 77 sq.cm.
___________________
HOPE , IT HELPS ... ✌️
_____________________
_____________________
Here's ur answer .
The area covered by the minute hand in 60 minutes = area of the circle of radius 7 cm
The area covered by minute hand in 30 minutes will be half of the area of circle
i.e.
=) 1/2×π×r×r
=) 1/2×(22/7)×(7×7)
=) 77 sq.cm.
___________________
HOPE , IT HELPS ... ✌️
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