Question

the table top is as shown in the figure. if oB=oD

Answer 1

a)to find the area of the larger segment we have to subtract the area of the smaller sector from the whole circle.
∴ the area= area of circle - area of smaller sector.
=πr²-Ф/360×πr²
=3.14×60×60- 90/360×3.14×60×60
=3.14×3600- 3.14×15×60
= 11304-2826
=8478cm

b)to find the perimeter= 360-Ф/360×2πr
=270/360×2×3.14×60
=3×3.14×30
=282.6