Question

Find the length of the arc of a cirlce of diameter 8.4 cm with area of the

sector 18.48 cm2

. Also find measure of the arc.

Answer 1

Area of sector = 1/2×l×r

18.48 = 1/2×l×4.2

18.48×2×1/4.2 = l

8.8 cm = length of arc
Is the answer.

Answer 2

Area of sector = 1/2×l×r

18.48 = 1/2×l×4.2

18.48×2×1/4.2 = l

8.8 cm = length of arc

Is the answer.