Question

the length of the minute hand of a clock is 7cm . find the area swept by the minute hand is half an hour​

Answer 1

Answer:

hy

your answer is here.

Step-by-step explanation:

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*pi*r*r

= 1/2*(22/7)*(7*7)

=77 sq.cm.

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Answer 2

Answer:

half hour means central swept is 180

so by formula

1/2*22/7*7*7

which gives answer to be

77cm sqaure

Step-by-step explanation: