Question

find the length of the arc of a circle with radius 0.7m and area of sector is 0.49m2

Answer 1

Area of sector = 1/2*radius^2*theta

So,
0.49=1/2*(0.7)^2*theta
Therefore,
theta = 2 radians

Now,
Length of Arc = radius*theta = 0.7 * 2 = 1.4 metres.

Answer 2

Answer:

Area of sector = 1/2*radius^2*theta

So,

0.49=1/2*(0.7)^2*theta

Therefore,

theta = 2 radians

Now,

Length of Arc = radius*theta = 0.7 * 2 = 1.4 metres.