the shape of the top of a table in a restaurant is that of a segment of a circle with the centre O and angle BOD = 90 , BO = OD = 60cm
find: i perimeter of the table

Asked by pereiracalida | 21st Nov, 2017, 11:24: PM

Expert Answer:

 
begin mathsize 16px style Perimeter space of space the space table
equals 3 over 4 cross times 2 πr plus 2 straight r
equals 3 over 4 cross times 2 cross times 22 over 7 cross times 60 plus 2 cross times 60
equals 282.85 plus 120
equals 402.85 space cm

OR
Perimeter space of space the space table
equals Length space of space major space arc plus 2 straight r
equals fraction numerator 2 πr over denominator 360 degree end fraction cross times straight theta plus 2 straight r
equals fraction numerator 2 cross times 22 cross times 60 over denominator 360 cross times 7 end fraction cross times 270 plus 120
equals 402.85 space cm end style

Answered by Rashmi Khot | 29th Nov, 2017, 11:34: AM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.