Question

the minute hand of a clock is 8 cm long find the area swept by the minute hand between 8:30 a.m to 9:05 a.m

Answer 1

first the are aof semicircle which is pie r square divide by2

now,
pie× 8÷2
pie2

now in 1 minute it rotates 7 degree so in 5 min it will rotate 35 degrees

which 8mplies area from 8 to 9:05 is equual 2

theta by 180 × pie r square

which implies 35÷180×pie r square
let suppose u get the value x

then add x and the previous 2pie ull get the answer...

hope it helps u...!!