Question

..............................

Answer 1

area of sector = πr² x angle/360
R = 15 km
angle = 72 degree
so, 3.14 x 15 x 15 x 72/360
706.5 x 72 /360
= 141 km²

Answer 2

Hey !!



Area of the sector in which , r = 15 km and ¢ = 72° = ( πR²¢ / 360 ) = ( 3.14 × 15 × 15 × 72/360 ) Km²




=> ( 314 × 45 / 100 ) km².



=> 1413 /10 km² .




=> 141.3 km².