The area of sector of a circle is 54π and radius is 36 find length of arc
Answers
Answered by
0
(angle/360)*pi*r*r is the formula for area of sector so
angle/360= 54/(36*36)
angle= 15 degrees
now length of the arc is (angle/360)*2*pi*r
so length is (15/360)*2*pi*36 = 3pi
angle/360= 54/(36*36)
angle= 15 degrees
now length of the arc is (angle/360)*2*pi*r
so length is (15/360)*2*pi*36 = 3pi
Answered by
0
area of sector = (1/2)r^2 theta = (1/2)r x l(arc) since l(arc) = r x theta
54pie = (1/2) x 36 x l
l = 3pie
54pie = (1/2) x 36 x l
l = 3pie
Similar questions